Seiko 7B24 Operating instructions

Brand: Seiko

Model: 7B24

Category: Watches

Type: Operating instructions

・

Keepthewatchandaccessoriesoutofthereachofbabiesandchildren.



Careshouldbetakentopreventababyorachildaccidentallyswallowingtheaccessories.



Ifababyorchildswallowsthebatteryoraccessories,immediatelyconsultadoctor,asitwillbeharmfultothehealthofthebabyorchild.

WARNING

・Immediatelystopwearingthewatchinfollowingcases.

 ○ Ifthewatchbodyorbandbecomesedgedbycorrosionetc.

 ○ Ifthepinsprotrudefromtheband.

 ※

ImmediatelyconsulttheretailerfromwhomthewatchwaspurchasedorSEIKOCUSTOMERSERVICECENTER.

To indicate therisksofseriousconsequencessuch assevere injuries unless the

followingsafetyregulationsarestrictlyobserved.

※

ImmediatelyconsulttheretailerfromwhomthewatchwaspurchasedorSEIKOCUSTOMERSERVICECENTER.

・Avoidthefollowingplacesforwearingorkeepingthewatch.

　○

Placeswherevolatileagents（cosmeticssuchaspolishremover,bugrepellent,thinnersetc.）arevaporizing

　○

Placeswherethetemperaturedropsbelow5℃orrisesabove35℃foralongtime



○ Placesofhighhumidity

　○

Placesa󰮏ectedbystrongmagnetismorstaticelectricity

 ○ Dustyplaces

　○ Placesa󰮏ectedbystrongvibrations

CAUTIONS

・Ifyouobserveanyallergicsymptomsorskinirritation



Stopwearingthewatchimmediatelyandconsultaspecialistsuchasadermatologistoranallergist

・Othercautions

 ○ Donotdisassembleortamperwiththewatch.

 ○ Keepthewatchoutofthereachofbabiesandchildren.



Extracareshouldbetakentoavoidrisksofanyinjuryorallergicrashoritchingthatmaybecausedwhentheytouchthewatch.

To indicatethe risksoflightinjuries ormaterialdamagesunlessthe followingsafety

regulationsarestrictlyobserved.

Handling cautions

84 85

AboutThisProduct

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 84-85 19.11.22 5:49:14 PM

82 83

1. About This Product

　Handingcautions …………………… 84

　Features………………………………… 86

　Displayandbuttonoperation……… 88

　HowtouseButtonAandB ……… 90

　Crown …………………………………… 91

2. Before Use

　Beforeuse……………………………… 92

　　Checkingthechargingstatus … 92

　　Checkingthetimeanddate…… 93

How to Set the Time and Date (Radio Signal Reception)

Settingthetimeanddatebyreceivingaradiosignal

… 94

Mechanismofradiosignalreception

… 94

Automaticreceptionandmanualreception

… 95

　　Aboutreceptionconditions …… 96

Radiosignalreceptionrange：InJapan(JJY)

… 96

Radiosignalreceptionrange：InChina(BPC)

… 97

Radiosignalreceptionrange:IntheUnitedStates(WWVB)

… 98

Toenablethewatchtoeasilyreceivearadiosignal

… 99

Environmentsinwhichitisdi󰮐culttoreceivearadiosignal

…100

Howtocheckthereceptionstatus

…102

Howtodisplaythereceptionresult

…102

Time Zone Adjustment Function (Selecting transmitting station)

Whatisthetimezoneadjustmentfunction?

…104

Featuresoftimezoneadjustmentfunction

…104

Questionsandanswersregardingtimezoneadjustmentfunction

…105

Howtosetthetimezone(Selectingtransmittingstation)

…106

Listofmajortimezonesaroundtheworld

…108

5. Solar Charging Function

　Aboutcharging ………………………110

　　Howtochargethewatch ………110

Theindicationtimeforchargingthewatch

…111

　Aboutenergy …………………………112

Energydepletionforewarningfunction

…112

　　Powersavefunction………………113

To Preserve the Quality of Your Watch

Topreservethequalityofyourwatch

…114

　　Dailycare ……………………………114

　　Performanceandtype……………115

　　Waterresistance …………………116

　　Magneticresistance ……………120

　　Band……………………………………122

　　Specialclasps………………………124

　　Lumibrite ……………………………129

　　Powersource ………………………130

　　Guarantee……………………………132

　　After-salesservice ………………134

7.Troubleshooting

Howtoconductmanualreception(Receivingaradiosignalmanually)

…136

Conditionsinwhichthewatchmaybeunabletoreceiveradiosignals

…138

　　Howtomanuallysetthetime…138

　　Howtomanuallysetthedate…140

　Preliminaryposition …………………142

Thingsaroundyouwhichgeneratemagnetism

…143

Howtosetthepreliminaryposition

…144

Settingthepreliminarypositionofthedate

…144

Settingthepreliminarypositionsofthehourandminutehandsmanually



…146

　Troubleshooting………………………148

Incaseofanabnormalmovement

…156

HowtoresettheBuilt-inICsystem

…156

8. Specications

　Specications…………………………162

Contents

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 82-83 19.11.22 5:49:14 PM

*Lengthadjustmentserviceformetallicbandsisavailableatthe

retailerfromwhomthewatchwaspurchasedorSEIKOCUSTOMER

SERVICECENTER.

Theservicemayalsobeavailableonachargeablebasisatother

retailers,however,someretailersmaynotundertaketheservice.

Thank you very much for choosing a SEIKO watch.

For proper and safe use of your SEIKO watch,

please read carefully the instructions in this

booklet before using.

Keep this manual handy for easy reference.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 81 19.11.22 5:49:14 PM

86 87

AboutThisProduct

■

TimeZoneAdjustmentFunction

…

(SelectingTransmittingStation)

→ pages104-109

■

SolarChargingFunction

…

→pages110-111

■

EnergyDepletionForewarningFunction

…

→ page112

■

PowerSaveFunction…

→ page113

■

AutomaticHandPositionAlignmentFunction

…

→page142

Thiswatch candisplaylocal timearound the worldby

settingthe appropriate timezone.Inaddition, setting

the time zoneenables thewatch to receiveofficial

standardradio signals to setthetime if the watchis

worninaradiosignalreceptionrange.

A solar cell underneath the dial convertsany form

of light into electrical energy to charge it. Once fully

charged,the watchcontinues torunfor approximately

sixmonths.

Themovement of the secondhandindicates that the

batteryshouldbecharged.

This watch is equipped with a function which can

suppressenergyconsumptionwhenitisleft without

receivinganadequatelightsourceforacertainlength

oftime.

Whenthe hand positions display an incorrecttimeas

aresultofexternalinuencessuchasmagnetism,the

watchautomaticallycorrectsthehandmisalignment.

Features

This solar-drive and radio-controlled watch is equipped with a radio signal adjustment function.

・

The watch is operated by using “electric energy” which is converted from the light received by the solar panel.

・

This watch displays the precise time by receiving radio signals conveying time information. It can receive o󰮐cial standard frequencies

from Japan (from either of two transmitting stations), the People's Republic of China, and the United States of America.

■

Radio Signal Receiving Function ･･･････････････････････ This watch adjusts the time and the date precisely by automatically

receiving radio signals daily.

In addition, radio signals can be forcibly received with manual

operation.

This watch can receive o󰮐cial standard radio signals　from Japan

(from 2 transmitting stations), China, and the United States (the

transmitting station for receiving radio signals can be selected using

the time zone adjustment function).

■

Display Function of Radio Signal Reception Level ････ The movement of the second hand indicates the radio signal

reception level during radio signal reception attempts.

■

Display Function of Radio Signal Reception Results ･･ The movement of the second hand indicates radio signal reception

results (Yes/No).

→

pages 94 – 101

→

p a ge13 7

→

page 102

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 86-87 19.11.22 5:49:14 PM

Checking the charging status

Checking the time and date

Whenthemovementofthesecondhandshowsanenergydepletionstate,thebatteryrequirescharging.

※T h e handsofthiswatchcannotbemovedbyturningthecrown.Sowhen

adjustingthetime,refertothefollowingpagesregardingtheprocedures.

Before use

92 93

Thesecondhandmoves

atone-secondintervals.

Thesecondhandmoves

attwo-secondintervals.

Thesecondhandmoves

atve-secondintervals.

Thesecondhand

isstopped.

Thewatchis

su󰮐cientlycharged.

Theenergydepletion

forewarningfunctionis

activated. → page112

Thepowersavefunction

isactivated.→ p a g e113

Thewatchcompletely

stopsoperating.

Asthechargedenergyisrunning

out,chargethebatteryfully.

Checkthemovementsofthesecondhand

afterreleasingthePowerSavemode

Asthechargedenergyisdepleted,

chargethebatteryfully.

※

Ifthesecondhanddoesnotmoveatone-secondintervalsevenafterfullychargingthebattery→AtTrou bleonpage150

Howto

chargethe

battery→

page110

Whenthetimeand

datearecorrect

Whentheradio

signalcanbe

received

Usethewatch

withoutadjustment.

Whenthe

timeand

dateare

incorrect

Whenaradio

signalcannot

bereceived

Settingthetimeanddate

byreceivingaradiosignal

→page94

Manuallysetthe

timeanddate

→pages138 -141

Radiosignalreceptionrangeindication →pages96-98

Environmentsinwhichitisdi󰮐culttoreceivearadiosignal →page100

BeforeUse

Howtosetthetime

zone→page106

※

Whensetting

atimezonefor

regionsotherthan

Tokyo(Japan),

theradiosignal

receptionfunction

willnotwork.

※

Whenthewatchisnotdisplayingtheprecisetimeanddateevenaftersuccessfullyreceivingaradiosignal→Inthis

case,refertoMisalignmentofthetimeandhandsonpage152andMisalignmentofthedateon　page15 4 .

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How to use Button A and B

AboutThisProduct

Crown

There are two types of crowns, a normal crown and a screw-lock crown.

Check the crown on your watch.

AboutThisProduct

The crown

turns.

The

crown

does not

turn.

Unlockthecrownbeforeoperatingit.

Pull out the crown and operate it.

Tur nthe

crown

clockwise.

※

Ifyourwatchhasascrew-lockcrown,thecrownscrewsintothewatchtopreventmalfunctionandincreasewaterresistance.

※Becarefulnottoscrewthecrowninbyforceasitmaydamagetheslotsofthecrown.

Normal crown

Screw-lock type crown

Afteroperating

thecrown,lockit.

Unscrew

Screw

Whilepressing

thecrown

Buttons A and B are recessed in the watchcase to improve the design and to prevent

erroneous operation. Please refer to the following gures for how to press the buttons.

<How to use>Press it using an object with a long tapered tip, etc.

Buttonentirely

covered

Buttonisrecessed

inthewatchcase

※

Press the lowerhalf of

theButtonwithyournger.

UpperhalfoftheButtoniscovered

Buttonhas

ahollow

※

Commonto

bothButtons

AandB

※Thebuttonshapevariesdependingonthedesign.

<How to use>Press with your nger.

Buttondoesnot

haveahollow

※

ButtonBdoes

not have this

structure.

Buttonpartiallycovered

Buttonprotrudesfromthewatchcase

※P r e s s  the buttons on a

soft cloth or the like before

operationinorderto prevent

damagetothewatch.

Press the buttons using an object with a long tapered tip holding

the watch as shown in the gure so that the watch does not move.

First,pressButtonB,andpressButtonAwhilepressingButtonBsoastopressthemsuccessfully.

■ When pressing Buttons A and B at the same time

Make sure to conrm “How to use Buttons A and B” as shown above before pressing the buttons.

・Both Buttons A and B have a hollow

Press Button A with your nger and Button B using an object

with a long tapered tip.

・Button A does not have a hollow, and Button B has a hollow

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【Receptionresultconrmation】→ page102

【Manualreception】→ page136

【Timezoneadjustment】→ page106

【Manualtimeanddatesetting】→ page138

Firstclick【Manualdatesettingmode】→ page140

Secondclick【Manualtimesettingmode】→ page138

【Timezoneadjustmentmode(setting

thetimetoalocaltimeabroad)】→ page106

Button B

Crown

Button A

Minute hand

Hour hand

Second hand

Date

Display and button operation

88 89

012

※I n caseofascrewlocktypecrown,when

thecrownisunlocked,itisatthe0-click

position.

Reception Result Display

【Conrmation of

reception result】

Y･･･

ReceptionSuccessful

　　

（10secondposition）

N･･･ReceptionFailed

　　

（20secondposition）

※

"Conrmreceptionresult"

refertopage102

Reception Level Display

※" A b o u t thereceptionlevel

display"refertopage137

※Positionsofabovedisplaysmaydi󰮏erdependingonthemodel.

AboutThisProduct

【manual reception】

H･･･

Highreceptionlevel



（50secondposition）

L･･･

Lowreceptionlevel

 

（40secondposition）

N･･･

Unabletoreceive

radiosignals



（20secondposition）

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 88-89 19.11.22 5:49:15 PM

The radio-controlled watch displays the precise time and date by automatically receiving

and synchronizing itself with the radio signal of an o󰮐cial standard frequency.

Time signal transmitted by a standard frequency is based on a super accurate "Cesium

Atomic Clock" that may have a 1 second loss or gain per one hundred thousand years.

■ Mechanism of radio signal reception

Cesium

AtomicClock

Radio-controlledwatch

Receiveradiosignals

throughtheantenna

insidethewatch

↓

Analyzetime

information

↓

Displaythecurrent

time,dateandday

O󰮐cialstandard

frequency

※

Whensettingatimezoneforregionsotherthanradiosignalreceptionrange,theradiosignalreceptionfunctionwillnotwork.

　

Checkthesettingofthetimezone→Howtosetthetimezone(Selectingtransmittingstation)onpages106-107

※

R a d i o signalreceptionresultsdependonareceivingcondition.→Environmentsinwhichitisdi󰮐culttoreceivearadiosignalonpage100

※

T h i s watchisunabletoreceiveradiosignalsoutsideareceptionrange→Radiosignalreceptionrangeindicationonpages96-98

※

W h e n thewatchisnotdisplayingtheprecisetimeanddateevenaftersuccessfullyreceivingaradiosignal→ AtTrouble:Misalignmentofthe

timeandhandsonpage152,Misalignmentofthedateonpage154 .

・ Manual reception

When this watch cannot automatically receive a radio signal due to a di󰮐cult

receiving environment, it is possible to receive them arbitrarily at any time.

　Howtoconductmanualreception→pages136 -137

The antenna for receiving radio

signals insidethewatch is atthe

9 o’clock position.Turning the

antenna toward the outside of

thewindowenablesthewatch to

receiveradiosignalsmoreeasily.

When receiving radio signals, place the watch in a

place where it can easily receive a radio signal.

・ Automatic reception

This watch automatically receives a radio signal at 2:00 AM.

■ Automatic reception and manual reception

This watch sets the time and date by automatically receiving a radio

signal at a xed time.

※

Ifthe watch fails to receive receives a radio signal at2:00 AM,itwill attempttoreceivea

radiosignalat3:00AM.Ifitfailsagain,itwillattempttoreceivearadiosignalat4:00AM.

Setting the time and date by receiving a radio signal

94 95

HowtoSettheTimeandDate(RadioSignalReception)

Transmitting

Station

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 94-95 19.11.22 5:49:16 PM

・C l o s e  to home electrical

appliances such as TV's,

refrigeratorsorairconditioners

・Close to OA devises such

as mobile phones, personal

computersorfaxmachines

・Close to steel desks or other

furnituremadeofmetal

・In places generating

radiointerference,such

as construction sites

or places with heavy

tra󰮐c.

・Closetooverheadpower

lines, TV stations, train

cables.

・ I n s i d e  a building, between tall

buildings,underground.

・ I n s i d e avehicle,train,orairplane

Avoid putting the watch

in such places when it

receives radio signals.

■ Environments in which it is di󰮐cult to receive a radio signal

NOTICE

100

101

HowtoSettheTimeandDate(RadioSignalReception)

・The watch may displaythe wrongtime ifit failsto receive radiosignals properly

becauseof interference. The watch mayalso fail to receiveradio signals properly

dependingonthelocationorradiowavereceivingconditions.Inthiscase,movethe

watchtoanotherplacewhereitcanreceiveradiosignals.

・Whenthewatchisoutofreceptionrange,itsaccuratequartzmovementwillcontinue

tokeepthetime.

・

Thetimesignaltransmissionmaybestoppedduringmaintenanceofthefacilitiesofeach

transmittingstationorbecauseofalightningstrike.Insuchacase,seeeachstation's

websiteforfurtherinformationorcontactSEIKOCUSTOMERSERVICECENTER.

・Websitesoftransmittingstations（asofNovember,2007）

Japan:NICT（JapanStandardTimeGroup）http://www.jjy.nict.go.jp/

China:NTSC　http://www.ntsc.ac.cn

T h e UnitedStatesof America: NIST　http://www.boulder.nist.gov/timefreq/

stations/wwvb.htm

・SEIKOCUSTOMERSERVICECENTER:0120-612-911（tollfreeinJapan）

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 100-101 19.11.22 5:49:18 PM

HowtoSettheTimeandDate(RadioSignalReception)

WWVBisoperatedbyNIST.

FortCollinstransmittingstation

Frequency:60KHz

※ NIST：NationalInstituteofStandardsand

 Technology

The reception range from the transmitting station is approximately 1,500 km (1,500 km

radius of Fort Collins radio station). There are four time zones within the reception range.

1,500km

FortCollins

transmittingstation

Frequency:60KHz

※Thewatchmaybeabletoreceiveradio

signalsoutsideareceptionrangeifthe

receivingconditionsarefavorable.

※Thewatchmayfailtoreceiveradiosignals

dependingonthereceptionconditions

(weather,geographiclocations,radio

disturbancessuchastallbuildings,and

orientationofthewatch).

　Environmentsinwhichitisdi󰮐cultto

receivearadiosignalonpage100.

■ Radio signal reception range: In the United States (WWVB)

The antennaforreceiving radio

signalsinsidethewatch islocated

atthe9o'clockposition.

Turning the antennatowardthe

window enables thewatchto

receiveradiosignalsmoreeasily.

In order to secure a stable radio signal

reception, keep the watch stationary

without changing the direction of the watch

or tilting it during radio signal reception.

■ To enable the watch to easily receive a radio signal

Place the watch where it can

receive radio signals more

easily, such as by the window.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 98-99 19.11.22 5:49:17 PM

About reception conditions

The reception range from each transmitting station is approximately

1,000 km （1,000 km radius of each station）.

Ohtakadoya-yama

transmittingstation

（40kHz）

Hagane-yama

transmitting

station（60kHz）

1,000km

※ NICT：NationalInstituteofInformation

  andCommunicationsTechnology

※

Whetherthewatchsucceedsinreceivingradio

signalsornotdependsonthereceivingconditions.

　

Referto"Environmentsinwhichitisdi󰮐cultto

receivearadiosignal"onpage100.

■ Radio signal reception range: In Japan (JJY)

JJY is operated bythe National

Institute of Information and

CommunicationsTechnology（NICT）.

JJYistransmittedfromtwostations

inJapan.EachstationtransmitsJJY

inadi󰮏erentfrequency.

Fukushima（Ohtakadoya-yama

transmittingstation:40KHz）

Kyushu（Hagane-yama transmitting

station:60KHz）

HowtoSettheTimeandDate(RadioSignalReception)

BPCisoperatedbyNTSC.

ShangqiuNationalTimeServiceCenter

Frequency:68.5kHz

※ NTSC：NationalTimeServiceCenter

The reception range from the transmitting station is approximately 1,500

km (1,500 km radius of the transmitting station).

■ Radio signal reception range:In China (BPC)

1,500km

※Thewatchmaybeabletoreceiveradiosignals

outsideareceptionrangeifthereceivingconditions

arefavorable.

※Thewatchmayfailtoreceiveradiosignals

dependingonthereceptionconditions(weather,

geographiclocations,radiodisturbancessuchas

tallbuildings,andorientationofthewatch).

　Environmentsinwhichitisdi󰮐culttoreceivearadio

signalonpage100.

Shangqiu

National

TimeService

Center

Frequency:68.5kHz

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 96-97 19.11.22 5:49:17 PM

This watch displays the latest reception results (Yes/No) of a radio signal for ve seconds.

■ How to display the reception results

Press Button A once and then release it.

※ H o w  to use button

AandB→page90

※

When Button A  is kept

pressed for three seconds

orlonger, the secondhand

startstomove tothe“Zero

SecondPosition,”and then

the watch switches tothe

ManualReception Mode. In

this case, press Button A

againtodisplaythetime.

How to check the reception status

102 103

The second hand indicates the reception results.

・

Place the watch in a place where it can easily receive a radio signal, or change its direction.

 

Evenwithintheradiosignalreceptionrange,thiswatchmayfailtoreceivearadiosignaldepending

onthecondition(duetotheinuenceofweather,geographicalfeatures,buildings,ordirection).→

Inthiscase,refertoEnvironmentsinwhichitisdi󰮐culttoreceivearadiosignalonpage10 0.

 

Thiswatchisunabletoreceiveradiosignalsoutsideareceptionrange→Radiosignalreceptionrangeindicationonpages96-98

・

Attempt to receive a Radio Signal in a di󰮏erent time period (In the case of manual reception).



Receivingenvironmentsdi󰮏eraccordingtotimeperiodsevenatthesameplace.

 Duetoradiosignalcharacteristics,thewatchisabletoeasilyreceiveradiosignalsduringnighttimehours.

・

Whenmanuallyadjustingthetimeevenaftersuccessfullyreceivingaradiosignal,receptionresultsareresetto“N.”



※

Whenpullingthecrowntothesecondclick,thewatchentersthemanualtimesettingmode,andresetsthereceptionresultswithoutadjustingthetime.

・

Whenthewatchisunabletoreceiveradiosignals,itmaymovedependingonthequartzmovement.



※ Accuracyofloss/gain:± 15 secondspermonth

If reception has failed: The second hand points to N.

If a reception was successful: The second hand points to Y

・

A radio signal has been received successfully. Use the watch without any adjustments.



※

Whenthewatchisnotdisplayingtheprecisetimeanddateevenaftersuccessfullyreceivingaradiosignal

→Inthiscase,refertoMisalignmentofthetimeandhandsonpage152andMisalignmentofthedateonpage154 .

BPC

JJY

If a reception has

failed: The second

hand points to N

(No; the 20 second

position)

If a reception was

successful: The second

hand points to Y

(Yes; the 10 second

position)

HowtoSettheTimeandDate(RadioSignalReception)

※

IfButtonAispressedaftervesecondsorwhilethesecondhandismovingtodisplaythereceptionresults,thereceptionresultsdisplayfunctioniscancelledandthesecondhandresumesitsnormalmovement.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 102-103 19.11.22 5:49:19 PM

List of major time zones around the world

108 109

TimeZoneAdjustmentFunction

Position that the

second hand indicates

Time difference

with UTC

Name of representative city

(Time zone)

Receivable

o󰮐cial

standard

frequency

0-secondposition

±0hour London/UTC ★ -

1-secondposition

+1hours Paris/Berlin ★ -

2-secondposition

+2hours Cairo ★ -

3-secondposition

+3hours Jeddah -

4-secondposition

+4hours Dubai -

5-secondposition

+5hours Karachi -

6-secondposition

+6hours Dhaka -

7-secondposition

+7hours Bangkok -

8-secondposition

+8hours HongKong(China) BPC

9-secondposition

+9hours To k yo(Japan) JJY

10-secondposition

+10hours Sydney ★ JJY △

11-secondposition

+11hours Nouméa -

12-secondposition

+12hours Wellington ★ -

13-secondposition

+13hours (DSTWellington) -

Position that the

second hand indicates

Time difference

with UTC

Name of representative city

(Time zone)

Receivable

o󰮐cial

standard

frequency

0-secondposition

±0 London/UTC ★ -

59-secondposition

-1hours Azores ★ -

58-secondposition

-2hours

(DSTRiodeJaneiro)

57-secondposition

-3hours RiodeJaneiro ★ -

56-secondposition

-4hours Santiago ★ WWVB △

55-secondposition

-5hours NewYork ★ WWVB

54-secondposition

-6hours Chicago ★ WWVB

53-secondposition

-7hours Denver ★ WWVB

52-secondposition

-8hours LosAngels ★ WWVB

51-secondposition

-9hours Anchorage ★ -

50-secondposition

-10hours Honolulu -

49-secondposition

-11hours MidwayIslands -

Whensettingatimezoneforaregionwherenoreceivableo󰮐cialstandardfrequencyismentionedinthetablebelow,theradiosignalreceptionfunctionwillnotwork.

DaylightSavingTime(SummerTime)isine󰮏ectintimezonesindicatedwitha“ ★“ mark.

(AsofNovember2007)

Ifareceivableo󰮐cialstandardfrequencyisindicatedwitha“△”mark,summertimeinthetimezonecanbesetbyreceivingthefrequencyifthetimezoneiswithintheradiosignalreceptionrange.

TimeZoneAdjustmentFunction

※

Timedi󰮏erencesbetweenregionsanddaylightsavingtimemaychangeduetocircumstancesofacountryorregion.

※

Atimedi󰮏erenceestablishedin15minuteor30minuteunitsisadoptedinverylimitedregions(ex.India).

※ Eachindicationmaydi󰮏erdependingonthemodel（design）ofthewatch.（AsofApril2014）

There are time di󰮏erences around the world based on “Coordinated Universal

Time (UTC).” There are 24 regions (Time Zones) around the world with a

time di󰮏erence of one hour. This system has been adopted internationally by

setting the total time di󰮏erence around the world as 24 hours.

In addition, Daylight Saving Time (Summer Time) is individually adopted in

some regions.

[What is UTC (Coordinated Universal Time)?]

 UTCistheuniversalstandardtimecoordinatedthroughinternationalagreement.

Itis used as the o󰮐cial time aroundthe world.UTCis determined by adding

aleapsecond toGMT (Greenwich Mean Time), which is determinedthrough

astronomicalmeasurement,inordertokeeptheprecisetime.

[What is summer time (DST)?]

 

Summertimeisdaylightsavingtime.Advancingthewatchonehourtoprolong

daytime during longer daylight hours in summer.Daylight saving time has

beenadoptedinabout80countries,mainlyinEuropeandNorthAmerica.The

adoptionanddurationofdaylightsavingtimevarydependingonthecountry.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 108-109 19.11.22 5:49:19 PM

106

107

TimeZoneAdjustmentFunction

BPC

JJY

BPC

JJY

※D u r i n g  movement of the

date, neither thebuttons

nor the crown can be

operated.

If the watch is

used in other

areas

Listofmajor

timezones

aroundtheworld

→page108

Thesecondhandstarts tomove,andthen the

watchentersthetimezoneadjustmentmode.

When the no movement state

of the minute and hour hands is

kept for ten seconds, the watch

automatically terminates the Time

zone adjustment mode.

Inthecasethatthedate

changes,thedatedisplay

changesafterward.

How to set the time zone (Selecting transmitting station)

Set the Time Zone by pressing the

button to move the second hand.

The watch automatically

terminates the mode.

Whenanomovementstateofthesecond

handiskeptforten seconds ormore,the

watchautomaticallyswitchestothe time

displaystate.

When it is inthe middle of operation,re-

attempttheoperationfromprocedure“1.”

Press and hold Button B until the

second hand moves (for four seconds).

※P r e s s Button

Bwitha

pointedobject.

→page90

※

Howtousebutton

AandB→page90

Setthesecondhandto

the9-secondposition.

Theradiosignaltransmittingstationcanbechangedbysettingthetimezones.

When setting a time zone for regions otherthanreceptionrange, the radio

signalreceptionfunctionwillnotwork.

※Thebuttonscanbepressedcontinuously.

When the no movementstateofthesecond hand is keptfor ten secondsor

more,thewatchautomaticallyswitchestothetimedisplaystate.

Whenitisinthemiddleofoperation,re-attempttheoperationfromprocedure“1.”

Pressing the button once moves

thesecondhandeveryonesecond.

Setthetimezonebymovingthesecondhand.

Theone-secondmovementofthesecondhandisequivalenttoonehourinthetimezone.

If the watch is used in Japan If the watch is used in China

Setthesecondhandto

the8-secondposition.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 106-107 19.11.22 5:49:19 PM

104 105

TimeZoneAdjustmentFunction

■ Features of time zone adjustment function

What is the time zone adjustment function?

→ How to set the time zone　pages 106-107

→ List of major time zones around the world　page 108

・

This watch is able to be set to an overseas local time in one-hour units.



Mostoftheregionsaroundtheworldadopttimedi󰮏erencesbasedonone-hourunits.

T h e watchsettimedi󰮏erencebasedonUTC(CoordinatedUniversalTime).

T h e rangeoftimedi󰮏erencesaroundtheworldcenteredfromUTCis“from–11 hoursto

+13hours.”

・

This watch can automatically display the local time of a desired area by

selecting its time zone.

When the watch is setin the time zone adjustment mode, the second

handindicatesthetimezone.

Press the button to set the timezone referringto the positionofthe

secondhand.

・

This watch selects a radio signal transmitting station by setting the time zone.

WhenthewatchisusedinTokyo,setthesecondhandto“ To k yo(Japan):9secondposition”

toreceivetheo󰮐cialstandardfrequencyofJapan.

WhenthewatchisusedinChina,setthesecondhandto“HongKong(China):8secondposition”toreceivetheo󰮐cial

standardfrequencyofJapan.

Ifatimezoneotherthanaradiosignalreceptionrangeisselected,theradiosignalreceptionfunctionwillnotwork.

0secondposition:UTC

■

Questions and answers regarding time zone adjustment function

Ｑ： W h e n returningtoJapanfromoverseas,isthetimeautomaticallysettoJapantime?

Ａ： J u s t movingcannotadjustthetimetoJapantime.Aftersettingthetimedi󰮏erence,radio

signalreceptionisnotperformed.WhenwearingawatchinJapan,settoJapantimeby

useofthetimezoneadjustmentfunction.

Ｑ： T h e handsstopduringoperationoftimezonesetting,therefore,doestimelagoccur?

Ａ： T h e internalcircuitstoresthetime,therefore,notimelagoccurs.

Ｑ：H o w accurateisthewatchwhilethetimedi󰮏erenceisbeingset.

Ａ： W h i l e thetimezoneisbeingset,thewatchhasanaccuracyofanormalquartz watch.

(Monthlyrate:± 15 seconds)

Ｑ： H o w  isadjustment made to a local time witha time difference of15 minutes or30

minutes?

Ａ： T h e timecanbeadjustedona1hourbasisbyuseofthetimezoneadjustmentfunction.

　W h e n adjustingtoalocaltimewithatimezonedi󰮏erenceof15 minutesor30minutes,

pleaserefertothe"Howtomanuallysetthetime"onpages138 -13 9.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 104-105 19.11.22 5:49:19 PM

■ How to charge the watch

To enjoy optimal performance of this watch, make sure that the watch is kept su󰮐ciently charged at all times.

Ifthewatchisconcealedunderalongsleeveshirt,orifitisused

or stored continually under conditions where it cannot receive

su󰮐cientlight, the power storedinthe solar cell maybe easily

depletedbecausethewatchcannotbesu󰮐cientlycharged.

※Whenchangingthewatch,keepthewatchtemperatureunder60℃

※B e f o r e initiallyusingthewatchorwhenthewatchhasstoppedasaresultofcompletedepletionof

storedpower,chargethewatchsu󰮐ciently.

■ The indication time for charging the watch

Standard charging time

★

Theguresinthetable abovereferto the timerequiredtochargethestoppedwatchbyexposureto light untilthewatchmoves

atsteady one-secondintervals. Evenifthe watch is partially charged fora periodshorter than thetime provided in theabove

table,itwill resumeone-secondintervalmovement,however,theone-secondintervalmovementwillchangetotwo-secondinterval

movementshortly.Toavoidthisandchargethewatchtoasu󰮐cientlevel,usethechargingtimementionedaboveasameasure.

※Therequiredchargingtimeslightlyvariesdependingonthemodelofthewatch.

※Themovementofthesecondhandcheckingthechargingstatus→　page92

About charging

110 111

Tochargethewatch,exposethe

dial(solarcell)toadequatelight.

SolarChargingFunction

Illumination

（LUX）

Light

source

Condition

（Example）

Timerequiredforfully

chargingthewatch

Timerequiredforchargingthewatchto

startmovingatone-secondintervals★

Timerequiredforcharging

thewatchtorunforoneday

500

Incandescentlight

60W60cm －－ 5hours

700

Fluorescentlight

Generalo󰮐ces －－ 3hours

1,000

Fluorescentlight

30W70cm － 120hours 2hours

3,000

Fluorescentlight

30W20cm 90hours 30hours

30minutes

5,000

Fluorescentlight

30W12cm 70hours 24hours

24minutes

10,000

Fluorescentlight

30W5cm 25hours 8hours

9minutes

10,000 Sunlight Cloudyday 25hours 8hours

9minutes

100,000 Sunlight

Sunnyday（Underthedirect

sunlightonasummerday）

8hours 2hours

3minutes

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 110-111 19.11.22 5:49:20 PM

No indication

WATER RESISTANT

WATER RESISTANT 5 BAR

WATER RESISTANT 10

(

)

BAR

No indication

WATER RESISTANT

WATER RESISTANT 5 BAR

WATER RESISTANT 10

(

)

BAR

116 117

ToPreservetheQualityofYourWatch

■ Water resistance

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 116-117 19.11.22 5:49:21 PM

To preserve the quality of your watch

114 115

■ Daily care

・The watch requires good daily care

 ・Wipeawaymoisture,sweatordirtwithasoftcloth

 ・Tocleantheclearances(aroundthemetallicband,crownorcaseback),a

softtoothbrushisconvenient.

 ・After soaking the watch in seawater, be sure to wash the watch in clean

purewaterandwipeitdrycarefully.

・Turn the crown from time to time

 ・

Inordertopreventcorrosionofthecrown,turnthecrownfromtimetotime.

 ・Thesamepracticeshouldbeappliedtoascrewlocktypecrown.

 　(Noneedtopulloutthescrewlocktypecrown.)

Crown　→　page91

ToPreservetheQualityofYourWatch

※ Thefigureaboveisoneexample.Performanceofyourwatchisdifferentfromabovesample.

The case back shows the caliber and performance of your watch

Calibernumber

Thenumbertoidentify

thetypeofyourwatch

Waterresistant

performance

Refertopages

116 -119 .

■ Performance and type

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 114-115 19.11.22 5:49:20 PM

How to charge the watch ･･･ page 110

Standard charging time ･････p a g e 111

■ Energy depletion forewarning function

The energy depletion forewarning function is activated when the energy stored in the

watch runs low. In such a case, the second hand moves at two-second intervals. If

the watch continues to be in the state of two-second interval movement, the watch

switches to ve-second interval movement, followed by a completely stopped state.

If the energy depletion forewarning function is activated, charge the watch su󰮐ciently.

※ Neitherthebuttonsnorthecrowncanbeoperatedwhilethesecondhandmovesattwo-secondor

ve-secondintervals（thisisnotamalfunction）.

※ W h i l e thesecondhandmovesatve-secondintervals,thehourandminutehands,dateandday

stopoperating.

※ W h i l e thesecondhandmovesatve-secondintervals,thewatchisunabletoreceiveradiosignals

automatically.Afterthewatchischargedsu󰮐cientlyandthesecondhandreturnstonormalone-

secondintervalmovement,conductthemanualreceptionofradiosignalstosetthewatchtothe

correcttime.（Referto"Howtosetthetime,dateandday"onpage95.）

About energy

112 113

This watch is equipped with a power save function (Power Saving) which can suppress energy

consumption when it is left without receiving an adequate light source for a certain length of time.

PowerSave1 PowerSave2

Condition

Whenthewatchisexposedtoastatewithoutreceiving

anadequatelightsourcefor72hoursorlonger.

Whenthewatchisinaninsu󰮐cient

chargingstateforalongtime.

Situation

Howtohandle

thesituation

Whenthewatchisexposedtoanadequatelightsourceforvesecondsorlonger,

itdisplaysthecurrenttimeagainafterthesecondhandisrapidlyadvanced.

After su󰮐cientlychargingthebattery,set

thewatchforthecurrenttime,ifnecessary.

Thesecondhand

stopspointing at

the 15-second

position, and the

hour and minute

handsalsostop.

The second hand stops

pointingatthe45-second

position,andthehourand

minutehandsalsostop.

■ Power save function

The watch does not

conduct automatic

radiosignalreceiving.

PowerSave2

※



Whilethewatchisbeingcharged,thesecondhandmovesat“Five-secondIntervals.”

　

Duringthe“Five-secondIntervalMovement,”neitherthebuttonsnorthecrowncanbeoperated.

※



Ifthe“PowerSave2”modeisprolonged,thestoredpoweramountdropsandtheinternalcurrenttimeinformationstoredwillbelost.

　

Whenthewatchreturnstoitsnormalmovementofone-secondintervalaftersu󰮐cientlychargingthebatter y,setthecurrenttimeby

receivingaradiosignal.(RefertoSettingthetimeanddatebyreceivingaradiosignal→page95)

SolarChargingFunction

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 112-113 19.11.22 5:49:20 PM

118 119

ToPreservetheQualityofYourWatch

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 118-119 19.11.22 5:49:21 PM

■ Special Clasps

There are 3 type of special clasps as described below;

If the clasp of the watch you purchased is one of them,

please refer to the indications.

A Type

→page12 5

B Type

→page126

A B

C Type

→page128

A Type

3 4

124 125

ToPreservetheQualityofYourWatch

Liftuptheclasptorelease

thebuckle.

Opentheap.

Take thepin outoftheadjustmenthole,adjust the

sizeofthestrapbyslidingitbackandforth,andthen

put the pin backinto theappropriate adjustment

hole.

Closetheap.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 124-125 19.11.22 5:49:22 PM

122 123

ToPreservetheQualityofYourWatch

■ Band

The band touches the skin directly and becomes dirty with sweat or dust.

Therefore, lack of care may accelerate deterioration of the band or cause skin irritation

or stain on the sleeve edge. The watch requires a lot of attention for long usage.

・Metallic band

・

Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long time.

・

Lack of care may cause a yellowish or gold stain on the lower sleeve edge of shirts.

・

Wipe o󰮏 moisture, sweat or soil with a soft cloth as soon as possible

・

To clean the soil around the joint gaps of the band, wipe it out in water and then brush it o󰮏 with a

soft toothbrush.

（Protect the watch body from water splashes by wrapping it up in plastic wrap etc.）

・

Because some titan bracelets use pins made of stainless steel, which has outstanding strength,

rust may form in the stainless steel parts.

・

If rust advances, pins may poke out or drop out, and the watch case may fall o󰮏 the bracelet, or the

clasp may not open.

・

If a pin is poking out, personal injury may result. In such a case, refrain from using the watch and

request repair.

・Leather band

・

A leather band is susceptible to discoloration and deterioration from moisture, sweat and direct sunlight.

・

Wipe o󰮏 moisture and sweat as soon as possible by gently blotting them up with a dry cloth.

・

Do not expose the watch to direct sunlight for a long time.

・

Please take care when wearing a watch with light-colored band, as dirt is likely to show up.

・

Refrain from wearing a leatherband watch other than Aqua Free bands while bathing,

swimming,andwhenworkingwithwaterevenifthewatchitselfis water-resistantenforced

fordailyuse（10 - BA Rwaterresistant）.

・Polyurethane band

・

A polyurethane band is susceptible to discoloration from light, and may be deteriorated by

solvent or atmospheric humidity.

・

Especially a translucent, white, or pale colored band easily adsorbs other colors, resulting in

color smears or discoloration.

・

Wash out dirt in water and clean it o󰮏 with a dry cloth.

　（Protect the watch body from water splashes by wrapping it up in plastic wrap etc.）

・

When the band becomes less exible or cracked, replace the band with a new one.

Notesonthe

lengthoftheband

Notesonskin

irritationandallergy

Skinirritationcausedbyabandhasvariousreasonssuchas

allergytometalsorleathers,orskinreactionsagainstfrictionon

dustorthebanditself.

Adjustthebandtoallowalittleclearancewithyourwristto

ensureproperairow.Whenwearingthewatch,leaveenough

roomtoinsertangerbetweenthebandandyourwrist.

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120 121

ToPreservetheQualityofYourWatch

■ Magnetic resistance

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 120-121 19.11.22 5:49:21 PM

B Type

・How to adjust the length of the leather band

With pressing buttons on both sides of the

buckle,pulltheleatherbandoutofthemoveable

loopandxedloop.Thenopentheclasp.

Press the push buttons again to

unfastenthebuckle.

Pullthepinoutofaadjustmentholeoftheband.

Slide theband toadjustits length and nd an

appropriatehole.Placethepinintothehole.

Fastenthebucklewithpressingthe

pushbuttons.

・How to wear or take o󰮏 the watch

1 2

126 127

ToPreservetheQualityofYourWatch

※NoFixedloopwithMetalBracelets.

Press the button onbothsidesofthebuckle ;

pullthebuckleup.

Thebandwillautomaticallycomeoutoftheloop.

Placethetipofthebandintothemoveableloop

andxedloop,andfastentheclaspbypressing

theframeofthebuckle.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 126-127 19.11.22 5:49:23 PM

■ Guarantee

・Guarantee coverage

 Thewatchbody(movement･case)andmetallicband.

・Exceptions from guarantee

 I n followingcases,repair/adjustmentserviceswillbeatcostevenwithinthe

guaranteeperiodorunderguaranteecoverage.

 ・Changeofleather/urethane/clothband

 ・Troublesordamagecausedbyaccidentsorimproperusage

 ・Scratchesorgrimecausedbyuse

 ・P r o b l e m s anddamagecausedbyactsofgod,naturaldisastersincluding

re,oodsorearthquakes.

 ・

Thecerticateofguarantee isvalid onlyifall thenecessaryitemsareproperlylled in.

Wewillnothonoranalteredortamperedcerticateofguaranteeforfreerepairservices.

Within one year from the date of purchase, we guarantee free repair/adjustment service against any defects according

to the following guarantee regulations, provided that the watch was properly used as directed in this instruction booklet.

・Procedure to claim free repair services

 ・

Foranydefectsunderguarantee,submitthewatchtogetherwiththeattached

certicateofguaranteetotheretailerfromwhomthewatchwaspurchased.

 ・I f repairservices cannot beprovidedbytheretailerfromwhomthe watch

was purchased, contact SEIKO CUSTOMERSERVICE CENTER.Inthis

case,theattachedcerticateofguaranteeisalsoneeded.

・Others

 ・

Themovements,case,dial,hands,glass,crown,buttonandbracelet,orpartsthereof

may be repairedwithsubstituteswhose outwardappearance may differ fromthe

originals.Ifnecessary,movementswillbereplaced.

 ・F o r  length adjustment service of a metallic band,ask the retailerfrom

whomthewatchwaspurchasedorSEIKO CUSTOMERSERVICECENTER.

Otherretailersmayundertaketheserviceonachargeablebasis.

Free repair services are guaranteed only under the period and conditions specied

in the certicate of guarantee. It does not a󰮏ect specic legal rights of a consumer.

The certicate of guarantee is valid only in Japan.

132 133

ToPreservetheQualityofYourWatch

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 132-133 19.11.22 5:49:23 PM

■ Power source

・Power source

The battery used in this watch is a special secondary battery, which is di󰮏erent from ordinary batteries.

Unlike an ordinary silver oxide battery, the secondary battery does not require periodic replacement.

However, if the secondary battery is charged or discharged repeatedly over an extended period of time,

its life may shorten.（This condition changes depending upon usage condition and storage environment.）

The secondary battery is an environmentally friendly, clean energy storage device.

・

When replacing thesecondary battery, makesure thatthe exclusive

secondarybatteryforthiswatchisused.Installationofanordinarysilver

oxidebatterycangenerateheatthatcancauseburstingorignition.

・

Even whenasilver oxidebattery is substituted, electrical continuity

cannotbeobtained.

NOTICE

・ Overcharge prevention function

When the secondary battery is fully charged, the overcharge prevention function is automatically activated

to avoid further charging. There is no need to worry about damage caused by overcharging no matter how

much the secondary battery is charged in excess of the "time required for fully charging the watch".

※

Referto"Standardchargingtime"onpage111 tocheckthetimerequiredforfullychargingthewatch.

■ （Notes on charging the watch）

・

W h e n  charging the watch, do not place the watch in close

proximitytoan intenselight source suchaslightingequipmentfor

photography,spotlightsorincandescentlights,asthewatchmaybe

excessivelyheatedresultingindamagetoitsinternalparts.

・

W h e n chargingthewatchbyexposuretodirectsunlight,avoidplaces

thateasilyreachhightemperatures,suchasacardashboard.

・

A l w a y s keepthewatchtemperatureunder60℃ .

NOTICE

130 131

ToPreservetheQualityofYourWatch

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 130-131 19.11.22 5:49:23 PM

C Type

Pressthebuttononthebuckle,and

lifttoopentheclasp.

Toadjust: Pull thepins out ofthe

adjustmentholesontheband.Slide

thebandtotheappropriatelength.

Pushthepinsintothenewholeson

theband.

■ Lumibrite

If your watch has Lumibrite

Lumibriteisaluminous paint that is completely harmless tohumanbeingsandnaturalenvironment,containingno noxious

materialssuchasradioactivesubstance.

Lumibriteisanewly-developedluminouspaintthatabsorbsthelightenergyofthesunlightandlighting apparatusinashort

timeandstoresittoemitlightinthedark.

Forexample,ifexposedtoalightofmorethan500luxforapproximately10minutes,LumiBritecanemitlightfor3to5hours.

Pleasenote,however,that,asLumibriteemitsthelightitstores,theluminancelevelofthelightdecreasesgraduallyovertime.

Thedurationoftheemittedlightmayalsodi󰮏erslightlydependingonsuchfactorsasthebrightnessoftheplacewherethe

watchisexposedtolightandthedistancefromthelightsourcetothewatch.

128 129

ToPreservetheQualityofYourWatch

Condition Illumination

Sunlight

Fineweather 100,000lux

Cloudyweather 10,000lux

Indoor(Window-

sideduring

daytime)

Fineweather morethan3,000lux

Cloudyweather 1,000to3,000lux

Rainyweather lessthan1,000lux

Lightingapparatus

(40-wattdaylight

uorescentlight)

Distancetothe

watch:1m

1,000lux

Distancetothewatch:3m

500lux(averageroomluminance)

Distancetothewatch:4m

250lux

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 128-129 19.11.22 5:49:23 PM

■ After-sale service

・Replacement parts

 ・SEIKOmakesitapolicytotypicallykeepastockofreplacementpartsfor

this watchfor7years.Replacementpartsarethosewhichareessential

to maintaining the functional integrity of thewatch.Please keep in

mind that if original parts are not available, they may be replacedwith

substituteswhoseoutwardappearancemaydi󰮏erfromtheoriginals.

・Notes on overhaul

 

Periodic inspection and adjustment by disassembly and cleaning (overhaul) is

recommended approximately once every 3 to4 years in orderto maintain optimal

performanceofthewatchforalongtime.Accordingtouseconditions,theoilretaining

conditionofyourwatchmechanicalpartsmaydeteriorate,abrasionofthepartsmay

occurduetocontaminationofoil,whichmayultimatelyleadthewatchitselftostop.

Asthe partssuch as gasketmaydeteriorate,water-resistantperformancemay be

impaired due to intrusionofperspiration and moisture.Please contact the retailer

fromwhomthe watch was purchasedfor inspectionandadjustmentbydisassembly

andcleaning (overhaul).Forreplacementofparts,pleasespecify"SEIKOGENUINE

PARTS."Whenasking forinspectionand adjustmentbydisassemblyand cleaning

(overhaul),makesurethatthegasketandpushpinarealsoreplacedwithnew

ones.

・Notes on guarantee and repair

 ・C o n t a c t theretailerthewatchwaspurchasedfromorSEIKOCUSTOMER

SERVICECENTERforrepairoroverhaul.

 ・W i t h i n  theguarantee period, present the certificate of guarantee to

receiverepairservices.

 ・Guarantee coverage isprovided in the certificateofguarantee. Read

carefullyandretainit.

134

135

ToPreservetheQualityofYourWatch

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 134-135 19.11.22 5:49:23 PM

■ How to manually set the date

Thewatchentersthemanualdate

settingmode.

(Thewatchkeepsmoving.)

When the date is not changed due to

an environment in which the watch is

unable to receive a radio signal (when

changing from months with 30 days to

months with 31 days or less), adjust

the date manually.

・ 

Thedatecanbeadjustedindependently

regardlessofthetime.

・ 

Whenthewatchreceivesaradiosignal

afterconducting manualadjustmentof

thedate,itdisplaysthereceiveddate.

・ 

When using the watch again inregions in which

thewatchisabletoreceivetheradiosignals,itis

recommendedtoperform“ManualReception.”

 →

Howtoconductmanualreceptiononpages136 -137

Pulling the crown to the rst click

Press Button A to set

the date.

Push the crown back in.

※

Whenthedateisnotcorrectevenifthewatchsuccessfullyreceives

aradiosignal,thepreliminarypositionofthedatemaybemisaligned.

　

Settingthepreliminarypositionforthedate→page14 4

140 141

Troubleshooting

※W h e n  the crown is

a screw lock type,

unlockit.→page91

※

HowtousebuttonA

andB→page90

※T h e  date will not

moveby turning the

crown.

※D u r i n g movementof

thedate,thebutton

cannotbeoperated.

※

Whenthecrownis

ascrewlocktype,

lockit.→page91

※

Adjustthedatebyadvancingthedate.Thedatecannotbereverselymoved.

OnedayAdvance

PressButtonAonceandthenreleaseit.

Continuous

Advance

WhenButtonAiskeptpressedfortwoseconds

orlonger,thedatewillstarttomove.

PressButtonAagaintostop.

Operationhasbeencompleted.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 140-141 19.11.22 5:49:25 PM

※

W h e n  thewatchentersthemanualtimesetting

mode,thereceptionresults will beindicatedas

“N,”sincethereceptionresultsdatawillbelost.

※

When the crown is

a screw lock type,

unlockit.→page91

■

How to manually set the time

The Secondhand moves to point to the

“Zero second” position and the watch

entersthemanualtimesettingmode.

When the watch is used continuously

in conditions in which the watch may

be unable to receive a radio signal, it

can be manually adjusted.

※

Whenthewatchisunabletoreceivearadiosignal,itcanmovedependingon

normalquartzmovement(accuracyofloss/gain:± 15secondspermonth).

・

Whenadjustingthetime,thedatewillbe

accordinglyadjusted.

・

Whenthewatchreceivesaradiosignalafter

manualadjustmentofthetime,itdisplaysthe

receivedtime.

・

Whenusingthewatchagaininregionsinwhich

thewatchisabletoreceivearadiosignal,itis

recommendedtoperform“Manualreception.”

 →

Howtoconductmanualreceptiononpages136 -137

Conditions in which the watch may be unable to receive radio signals

138 139

Pulling the crown to the second click

Press Button A to set

the time.

Push the crown back In.

Troubleshooting

※

Howtousebutton

AandB→page90

※

Thehandwillnotmove

byturningthecrown.

※

Advance the hand

to adjust the time.

The hand cannot be

turnedreversely.

※

Thepointinwhichthedatechangesat0:00AM(12:00PM).

　

AdjustthetimetakingintoconsiderationthatitissetduringtheAMandPM.

OneminuteAdvance

PressButtonAonceandthenreleaseit.

Continuous

Advance

WhenButtonAiskeptpressedfortwo

secondsorlonger,thehandwillstarttomove.

PressButtonAagaintostop.

Thewatchwillresumeitsnormalmovement

afterpushingthecrownbackin.

Push the crown back in according tothe

timesignal.

Operationhasbeencompleted.

Thewatchresumesitsnormalmovement.

※W h e n  the crown

is a screw lock

type,unlockit. →

page91

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 138-139 19.11.22 5:49:24 PM

It takes 12 minutes at the

longest according to the

receiving state of a radio signal.

※

Whenthetimedi󰮏erenceissetforaregionotherthanradiosignalreception

range,aradiosignalcannotbereceivedmanually(Thesecondhanddoesnot

movetothezerosecondposition).Checkthetimedi󰮏erencesetcurrently.

 →Howtosetthetimezonepages106 -107

Whenreceivingaradiosignal,

placethewatchwhereitcan

easilyreceiveasignal.

→

To enablethewatch to easily

receivearadiosignalpage99

Check whether the receiving a radio

signalhasbeensuccessful.→page102

Receptionlevelisupdatedbymovingthesecondhandeveryoneminute.

※

Theminutehandmovesbyoneminutealongwiththemovementofthesecondhand.

※

Thereceptionofaradiosignalcannotbeconductedunlessthewatchisstill.

Whenthesecondhandhasmovedtothezerosecondposition,thewatch

willstarttoreceivearadiosignal.

Display during reception

Theantennaforreceivingradio

signals inside thewatch is at

the9o’clockposition.

Turni ngtheantennatowardthe

outside of the windowenables

the watch to receive radio

signalsmoreeasily.

How to conduct manual reception (Receiving a radio signal manually)

136 137

※

I t isdi󰮐culttoreceivethesignalsinsomereceivingconditions.→Environmentsinwhichitisdi󰮐culttoreceivearadiosignalIndicationonpage100

※

T h i s watchisunabletoreceivearadiosignaloutsideareceptionrange→Radiosignalreceptionrangeonpages96-98

※

Whenthewatchisunabletoreceiveradiosignals→IftheReceptionhasfailed:ThesecondhandpointstoNonpage103.

Placing the watch

Keep pressing Button A until the second hand has nished

its movement to the zero second position (Four seconds).

Do not move the watch while receiving a radio signal.

The watch displays the time when receiving

a radio signal and after receiving a signal.

※

Duringthemovementofthedate,neitherthe

buttonsnorthecrowncanbeoperated.

Troubleshooting

After about one minute from the start of receiving a radio signal,

the second hand will start to indicate the receiving level.

Receiving Level is

High: The second

hand points to H

(High, the 50

second position)

Receiving Level is

Low: The second

hand points to L

(Low, the 40

second position)

Notreceivable

After five seconds,the watch

willresumedisplayingthetime.

If the Reception has

failed: The Second

Hand Points to” N”

(No; the 20 second

position)

※ H o w tousebutton

AandB→page90

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 136-137 19.11.22 5:49:24 PM

The radio-controlledwatch can automatically adjustthe time, however ifthepreliminary hand positionis an

improperone,thewatchwillbeunabletodisplaytheprecisetimeevenwhenreceivingaradiosignal.

Whencomparingthestateof“MisalignedPreliminaryHandPosition”tothatofaweightscale,itislike“ascale

whichisunabletodisplaythecorrectweightbecauseitsneedleisnotsettothezeropositionbeforeweighing.”

Whendisplayingawrongdateafterreceivingaradiosignalcorrectly, orwhen

performingsystemreset,thepreliminarypositionofthedatemustbeadjusted.

→Howtosetthepreliminarypositiononpage14 4

Thehandhasan“Automatichandpositionadjustmentfunction,”whichautomaticallycorrectsawrongpreliminaryposition.

Automatichandpositionalignmentfunctionactivatesonceaminuteforthesecondhandandat12 : 0 0 bothfortheAMandPMfortheminuteandhourhands.

※Thepreliminarypositionofthehourandminutehandscanbeadjustedmanually.

Sincethepreliminarypositionofthedateisnotautomaticallyadjusted,itmustbeadjustedmanually.

・ When it is necessary to adjust the preliminary position

・

Function to automatically align the preliminary position of the hand (Automatic hand Position adjustment function)

Preliminary position

142 143

■ Things around you which generate magnetism

・MagneticClip ・

Accessoriesusingamagnet

・ M a g n e t  of doors for a

refrigeratororfurniture

・

Speakersusedforsuchasaudiovisualapparatus,

radio,anearphone,andacellularphone.

・Cla spsforabagorwallet

・

Magnetic therapy devices(a heating

pad,bedding,alumbagoband,etc.)

〈Misalignmentofthetimeanddate〉

 ･

Inthecaseofhavingastrongimpact:Misalignmentofthetimeanddatemayoccurwhendroppingorhittingthewatch.

 ･

I n thecaseofamagneticinuence:Misalignmentofthetimeanddatemayoccurwhenbringingthewatchclosetoan

objectwhichgeneratesmagnetism.

When the watch is unable to display the precise time or date even if it successfully receives a

radio signal with the correct time zone setting, the preliminary position may be misaligned.

※

Whenthewatchisnotdisplayingtheprecisetimeanddateevenaftersuccessfullyreceivingaradiosignalduetofactorsotherthan

abovementionedones→ AtTrouble:Misalignmentofthetimeandthehandsonpage152,Misalignmentofthedateonpage154.

Troubleshooting

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 142-143 19.11.22 5:49:26 PM

Troubleshooting

148 149

Troubleshooting

Troubles Possible causes

Movement

of the watch

hands

Thesecondhandmoves

attwo-secondintervals.

Theenergydepletionforewarningfunctionisactivated.（page112 ）

Ifthisfunctionisactivatedeventhoughyouwearthewatch

everyday,thewatchmaybeunabletoreceivesu󰮐cientlight

becauseitisconcealedunderalongsleeveshirt,etc.

Thesecondhandmoves

atve-secondintervals.

Thestoppedsecondhand

pointingtothe15-second

positionstartedmoving.

ThePowerSavehasbeenactivatedtolimitenergyconsumption.（page113）

Whenthewatchisusedorstoredcontinuallyunderconditionswhereit

cannotreceivesu󰮐cientlight,thepowersavefunctionisautomatically

activatedinordertoreduceunnecessaryenergyconsumption.

Thestoppedsecondhand

pointingtothe45-second

positionstartedmoving.

ThePowerSavehasbeenactivatedtolimitenergyconsumption.（page113）

Whenthewatchisusedorstoredcontinuallyunderconditionswhereit

cannotreceivesu󰮐cientlight,thepowersavefunctionisautomatically

activatedinordertoreduceunnecessaryenergyconsumption.

Thewatchhandswerefast-

forwardedeventhoughnobutton

hadbeenpressed,andthenthe

watchresumedregularmovement.

ThePowerSavefunctionhasbeenactivated.（page113）

Theautomatichandalignmentfunctionhasbeenactivated.（page142）

Whenthehandpositionsdeviatetodisplayincorrecttimeasaresultof

inuenceofvariousexternalsources,thewatchautomaticallycorrects

thehandalignmentitself.

Solutions

Referencepage

Su󰮐cientlychargethewatchuntilitstartsmovingatone-secondintervals.

M a k e  surethat the watch is notconcealedundera sleeve whileyou are

wearingthewatch.Whentakingthewatcho󰮏,placethewatchinalocation

asbrightaspossible.

page110

Waituntilthewatchreturnstothecurrenttimedisplay.

Usethewatchasitis（thisisnotamalfunction）.

－

①

Su󰮐cientlychargethewatchuntilitstartsmovingatone-secondintervals.

②

Setthetime,dateandday.

page110

page95

Usethewatchasitis（thisisnotamalfunction）. －

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 148-149 19.11.22 5:49:27 PM

146

147

Enter the mode to adjust the preliminary

positionsofthehourandminutehands.

After the date stops, press and hold

Button A until the second hand stops at

the 0-second position (for two seconds).

Press Button B Once.

The preliminary positions of the hour and

minutehandsareautomaticallyadjusted.The

hourandminutehandsstarttomove,andthen

allhandswillstopatthe0-secondposition.

After 10 seconds when the all hands

will stop at the 0-second position, the

watch will return to display the time.

■

Setting the preliminary positions of the hour and minute hands manually

When setting the preliminary positionof the

hourandminute handsrightafter setting the

preliminarypositionofthedate,aftercompleting

procedure“2”ofpreliminarypositionsettingof

thedateonpage14 5 ,gotoprocedure“2.”

No button operation is needed if setting the

hands to the preliminary positions automatically.

→　

Automatichandpositionalignment

functiononpage142

C o n d u c t t h e f o l l o w i n g

proc e dures when set ting

the hour and minute hands

manually.

Thewatchentersthemodetoadjustthepreliminarypositionofthe

date.

Press and hold Button A and Button B

simultaneously until the second hand stops

at the 13-second position (for four seconds).

PresstheButtons

Simultaneously

forFourSeconds

※

Howtousebutton

AandB→page90

※

Never pull the crown out.

※

I n  order to perform the

procedures easily, it is

recommended to first

press and hold Button B,

andthenpressButtonA.

・

Whiledatesareadvancing,nobuttonoperationcanbemade.

・ 

Afterthedatestops,whenthewatchhasnooperationandnomovementof

thehandsfortensecondsorlonger,itautomaticallydisplaysthetimeagain.

・

Whenitisinthemiddleofoperation,re-attempttheoperationfromprocedure“1.”

・

Whiledatesareadvancing,nobuttonoperationcanbemade.

・ 

Afterthedatestops, when the watchhasnooperationand no movementof

thehandsfortensecondsorlonger,itautomaticallydisplaysthetimeagain.

・

Whenitisinthemiddleofoperation,re-attempttheoperationfromprocedure“1.”

Troubleshooting

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 146-147 19.11.22 5:49:26 PM

144 145

Troubleshooting

How to set the preliminary position

■

Setting the preliminary position of the date

Whensettingthepreliminarypositionofthehourandminute

handsrightaftersettingthepreliminarypositionofthedate,

aftercompletingprocedure2ofpreliminarypositionsetting

ofthedate,gotoprocedure2onpage147.

The preliminary position of the date is the “1st.”

When the preliminary position of the date is

incorrect, the correct date cannot be displayed

even if the watch receives a radio signal.

Loss or gain of the date can be adjusted by

setting the preliminary position of the date as

the “1st.”

Thedatewillstarttoadvanceandstopatthepreliminaryposition.

Press and hold Button A and Button B simultaneously until the

second hand stops at the 13-second position (for four seconds).

PresstheButtons

Simultaneouslyfor

FourSeconds

Pressing Button B to set

the date to the “1.”

Whenthedate movementstops, the

preliminarypositionadjustmentmode

willbeterminatedintenseconds.

Conrmwhetherthedateiscorrectafter

thewatchresumesdisplayingtime.

Inthecase that thedateis notcorrect,

adjustthedate.

Adjustingthedatebyreceiving

aradiosignal.

Howtoconductmanualreception

→page136

Ifthewatchisunabletoreceiveradiosignals

Howtomanuallysetthedate→page140

Automatic mode termination

Inthecasethatthenumericalnumberofthedatedoes

notlocateatthecenterof thewindow,it alsocanbe

correctedbythesameproceduresasmentionedabove.

※

Thedatecanonlybeadvanced.Itcannotbeturnedback.

Continuous

advancement

IfButtonBiskeptpressedfortwoseconds

orlonger,the datesadvance continuously.

PressButtonBagaintostop.

Fine-tuning:

Each pressing of Button B advances the

dategradually.

※

Howtousebutton

AandB→page90

※

Never pull the crown out.

※

I n  order to perform the

procedureseasily, it is

recommended to first

pressandholdButtonB,

andthenpressButtonA.

・

Whiledatesareadvancing,nobuttonoperationcanbemade.

・ 

Afterthedatestops,whenthewatchhasnooperation

and no movementof the hands forten seconds or

longer,itautomaticallydisplaysthetimeagain.

・

Whenitisinthemiddleofoperation,re-attempttheoperationfromprocedure“1.”

Setthepreliminarypositiontotheprecisedate.

Adjustthedatesothatthepositionof“1”willlocate

atthecenterofthewindow.

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150 151

Troubleshooting

At trouble Possible causes

Reception

of a radio

signal

Whenthewatchis

unabletoreceivea

radiosignal

Thereceptionresults

havefailedandthe

secondhandpoints

toN(thewatchdoes

notreceivearadio

signal).

Thewatchwasmovedwhileitwasreceivinga

radiosignal.

Thewatchwasleftwheretheradiosignalwas

weakorwhereitwasunabletoreceivearadio

signal(page100).

Transmittingstationsmayhavestopped

transmittingradiosignalsforsomereason

(Transmissionstop).

The watch is set to a time zone otherthan

a radio signal reception range (a wrong

transmittingstationisselected).

Charging

the solar

battery

Thestoppedwatchwasexposedto

anadequatelightforlongerthan“the

timerequiredtofullychargethewatch,”

however,itdoesnotresumeitsnormal

one-secondintervalmovements.

Thelightistooweakorthemanneroflighting

thewatchhasbeenalteredwhilethewatchis

beingcharged.

TheBuilt-inICofthewatchhasfallenintoan

unstablecondition.

Solution

Referencepage

Donotmovethewatchwhileitisreceivingaradiosignal.

Thereceptionoftheradiosignalscannotbeconductedunlessthe

watchisstill.

page99

Placethewatchwhereitisabletoeasilyreceivearadiosignal.

page99

Check the website of each transmitting station for further

information concerninga transmissionstop.Attempttoreceivea

radiosignalagainafterawhile.

page101

①

Checkthetime zone thatthewatchis currently set for(the transmitting station that is

currentlyselected),andselecttherighttimezone.

②

Whenthewatchisnotdisplayingtheprecisetime,receivearadiosignalagainifnecessary.

page106

page95

Charge the watch in an environment where the watch can be

exposedtoanadequateintensityoflightinastablecondition.

page110

Refer to the "In Case of an Abnormal Movement" section and

performtheoperationsasinstructed.

page156

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Go on to the next page

■ How to reset the Built-in IC, ( ① - ③ )

Invesecondsafterreleasingthebuttons,thesecondhandmakesafull

rotationandstops at thezero secondposition.Thenthehandsof the

hourandminutewillstarttomovetowardtheZerosecondposition.

In case of an abnormal movement

156 157

Inthecasethatthewatchmovesabnormallyorthatthewatchdoesnotmoveatone-secondintervalseven

afterfullychargingthebattery,performtheproceduresfrom①-⑧tore-establishnormalfunction.

※W h e n thecrown

is a screw lock

type, unlock it.

→page91

Press and hold Button A and Button B simultaneously for four seconds, and then release them.

When pulling the crown to the second click, the

second hand stops at the zero second position.

※

In order to perform the

procedures easily, it is

recommended tofirst press

andhold Button B,and then

pressButtonA.

※

Howtousebutton

AandB→page90

Troubleshooting

Thesecondhandwillstartto

movefrom0:0:0AM

When all the hands return to the zero

second position, push the crown back in.

※

When the crown is

a screw lock type,

unlockit.→page91

※I f thesecondhanddoesnotstartto

movefrom“0:0:0AM,”theresetting

ofthe Built-in IC maynot activate.

In such a case, re-attempt the

operationfromtheprocedure“2.”

Thewatchentersthemodetoadjustthe

preliminarypositionofthedate.

Press and hold Button A and Button B

simultaneously until the second hand stops at

the 13-second position (for four seconds).

■

Adjusting the preliminary position of the date（④～⑤）

・

W h e n  thewatchhasnooperationfortensecondsor

longer,themodeautomaticallyterminates.

・ W h e n itisinthemiddleofoperation,re-attempt

theoperationfromprocedure“4.”

※

Never pull the crown out

PressandholdButtonAand

ButtonBsimultaneouslyfor

fourseconds

Press Button A  and

ButtonBsimultaneously

forfourseconds

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 156-157 19.11.22 5:49:27 PM

154 155

Troubleshooting

At Trouble Possible causes

Misalignment

of the date

Thereceptionresultdisplay

conrmssuccessfulreception,

andthecorrecttimeisdisplayed,

butthewrongdateisdisplayed.

Thedateisoutofpreliminaryposition.

Thishappenswhenthedateisoutofpreliminarypositionasaresult

ofinuenceofvariousexternalsourcesorafterthebuilt-inICisreset.

Operation

Thecrownorbuttons

cannotbeoperated.

Thestoredelectricpowerisrunningshort.

Dateanddayaremovingrightafterasetting

iscarriedoutbythecrownorbuttonoperation.

Yougetlostin

themiddleofthe

operation.

－－－－－－－－－－－－－－－－－－－－－－－－－

Others

Bluronthedialglass

persists.

Smallamountofwaterhasgotinsidethe

watchduetodeteriorationofthegasket,etc.

※

Forthesolutionoftroublesotherthantheabove,consulttheretailerfromwhomthewatchwaspurchased.

Solution

Referencepages

Checkif thedateissettothe correctpreliminary position. Ifnot,

correctthepreliminarypositionfordate.

page144

Su󰮐cientlychargethewatchuntilitstartsmovingatone-second

intervals.

page110

Waitforawhilewithoutdoinganything. －

Leave the watch as it is for a while. Thewatch resumes regular

movement.Ifthecrownis pulledout,pushitbackin.Afterawhile,

carryoutthesettingproceduresagainfromthebeginning.

－

Contacttheretailerfromwhomthewatchwaspurchased.

－

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 154-155 19.11.22 5:49:27 PM

152 153

Troubleshooting

At Trouble Possible causes

Misalignment

of the time

and hand

positions

Thewatch

temporarilygainsor

losestime.

Thewatchfailstoreceivearadiosignal

correctlyasaresultofexternalinuence

(incorrectreception).

Thewatchhasbeenleftinanextremelyhigh

orlowtemperatureplaceforalongtime.

Thewatchdisplaysanincorrecttime

hourunit,eventhoughitdisplaysthe

precisetimeofminutesandseconds

Thewatchmaybesettoatimeinadi󰮏erent

timezonefromtheregionwherethewatchis

currentlyused.

Thereceptionresultsare

successful,buttheprecise

timeisnotdisplayed.

Thehandpositionsweremisalignedasaresultofexternalinuence.

Thehandsareoutofthepreliminarypositionasaresultofexternal

inuence.→ Preliminarypositiononpage142

Thesecondhandpositionis

notcorrectlyalignedin“the

receptionresultsdisplay”or

“thereceptionleveldisplay.”

The second hand is out of the preliminary

positionasaresultofexternalinuence.

→ Preliminarypositiononpage142

Solution

Referencepages

①Placethewatchwhereitis abletoreceivea radiosignal more

easily.

②Conductmanualreceptionifnecessary.

page99

page136

①

Whenthewatchreturnstoanormaltemperature,itwilldisplaytheprecisetimeasbefore.

②

Ifthewatchstillgainsorlosesthetime,conductmanualreceptionifnecessary.

③

Ifthewatchcannotresumenormalmovementevenafterconductingtheabovementionedprocedures,consulttheretailerfromwhomthewatchwaspurchased.

－

page136

－

Checkthetimezonethatthewatchiscurrentlysetfor,andselect

therighttimezone.

page106

①

Nocrown or button operation is needed, since theautomatichand position

adjustmentfunctionwillbeactivatedtoalignthehandpositions.AutomaticHand

Position AdjustmentFunctionactivatesonceaminute forthesecondhand and

at12:00bothfortheAMandPMfortheminuteandhourhands.

　

Ifyouareinahurr y,thepreliminarypositionofthehourandminutehandscanbeadjustedmanually.

②

I f  themisalignment of the hand isnot corrected, refer to the "Incase of an

abnormalmovement"sectionandperformtheoperationsasinstructed.

③

Ifthemisalignmentofthehandisnotcorrectedevenafterperformingtheoperations

asinstructedinthe②,consulttheretailerfromwhomthewatchwaspurchased.

page142

page156

－

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Go on to the next page

158

Troubleshooting

159

Troubleshooting

Pressing Button B to Set the

Preliminary Position to the “1.”

Continuous

advancement

EachpressingofButtonAadvancesthedatebyoneday.

IfButtonAiskeptpressedforthedatesadvancecontinuously.Press

ButtonAagaintostopit.

Continuousadvancement:IfButtonBiskeptpressedfortwosecondsor

longer,thedatesadvancecontinuously.PressButtonBagaintostop.

Fine-tuning EachpressingofButtonBadvancesthedategradually.

Thewatchentersthetimezoneadjustmentmode.

Press and hold Button B until the second hand

moves (for four seconds) to the 0-second position.

Whenanomovementstateofthesecondhandiskeptfortensecondsormore,

thewatchautomaticallyswitchestothetimedisplaystate.

Whenitisinthemiddleofoperation,re-attempttheoperationfromprocedure“6.”

■ Setting the time zone（⑥～⑦）

The preliminary position

adjusting mode terminates

10 seconds after the

procedure “5” has been

completed.

Adjustthedatesothatthepositionof“1”will

locateatthecenterofthewindow.

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 158-159 19.11.22 5:49:28 PM

162

Specications

1.Frequencyofcrystaloscillator･････ 32,768Hz(Hz=Hertz...Cyclespersecond)

2.Loss/gain(monthlyrate)･･･････････ L o s s /gain± 15secondsonamonthlyrate(Exceptthecase

whenthewatchis usedwithoutanautomatictimesettingby

receivingaradiosignalandwhenitiswornonthewristwithin

anormaltemperaturerangebetween5℃and35℃ ).

3.Operationaltemperaturerange････ Between－10℃〜+60℃

4.Drivingsystems･････････ S t e p motor(Hourandminutehands,secondhand,andthedate)

5.Powersource･･････････････････････ Secondarybattery,1piece

6.Durationofoperation･･･ Approximatelysix months(Fully charged, andthe Power Saveis not

activated).

 ※I f  the PowerSave isactivated after it is fully charged, the watch

continuestorunforapproximatelyoneyearandahalfatmaximum.

7.TimesettingbyreceivingtheJJY-LFradiosignal･･･ A u t o m a t i c  reception(at 2:00AM3:00 AM

and4:00AM)

 ※Receptionattempts dependonthe radio

signalreceivingconditions.

 ※A f t e r  havingreceived a radio signal, the

watchwillstartto movedependingonthe

quartzmovementuntilthenextreception.

 ※Manualreceptionisalsopossible

8.IC(IntegratedCircuit)･･･ Oscillator,frequencydivideranddrivingcircuitC-MOS-IC,3pieces

※Thespecicationsaresubjecttochangewithoutpriornoticeforproductimprovement.

Specications

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 162-163 19.11.22 5:49:28 PM

160

161

Troubleshooting

Set the time zone by pressing the button to move the

second hand (selecting a transmitting station).



Otherareas:Listofmajortimezonesaroundtheworld→page108

Setthetimezoneoftheareawherethewatchisused.

Pressing the button

oncemovesthesecond

handeveryonesecond.

※T h e buttonscan

　bepressedcontinuously.

The time zone adjusting

mode terminates 10 seconds

after the procedure “7” has

been completed.

Set the Time

Set the time by receiving a

radio signal.

How to conduct manual reception

→ p ag e13 6

If the watch is unable to receive

radiosignals

Howtomanuallysetthetime

→page138

The operation has been

completed when setting the

time.

BPC

JJY

BPC

JJY

China; the 8

second position

Japan; the 9

second position

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 160-161 19.11.22 5:49:28 PM

ソーラー電波 7B24-7説明書 P81-164 (欧文).indd 164 19.11.22 5:49:28 PM

Seiko 7B24 Operating instructions

Brand: Seiko

Model: 7B24

Category: Watches

Type: Operating instructions

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Seiko 7B24 Operating instructions

Seiko 7B24 Operating instructions

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