2. Fashion & style
  3. Watches
  4. Union
  5. U-7750

Union U-7750 User manual

  • Hello! I've reviewed the user manual for the UNION GLASHÜTTE/SA. U-7750 watch. This document details its automatic chronograph movement, day and date functions, and the use of the tachymeter scale. I am ready to answer your questions about this watch and its features.
  • How do I manually wind the watch?
    How do I set the time?
    How do I correct the day and date?
    When should I avoid correcting the day and date?
1/3
DEUTSCHE UHRMACHERKUNST.1893
4 Day and date indicator
5 Central 60 second hand (chronograph)
6 30 minute counter (chronograph)
7 12 hour counter (chronograph)
8 Tachymeter scale
9 Start/Stop push-button (chronograph)
10 Reset push-button (chronograph)
11 3 position crown
I Rest and winding position
II Day and date setting position
III Time setting position, with stop second and midnight
date and day change
Technical specifications
• MechanicalmovementchronographU7750with
automatic winding and day and date indicator
• Numberofjewels:25
• 28,800vibrations/hour(4Hz)
• Powerreserve:Approx46hours
Display / Functions
 1 Hourhand
 2 Minutehand
3 Small seconds hand
U-7750
User’smanual
www.union-glashuette.com U-7750_EN/2013
2/3
DEUTSCHE UHRMACHERKUNST.1893
CONGRATULATIONS
CongratulationsonyourchoiceofawatchbyUNION
GLASHÜTTE/SA.® - a German brand among the most
renowned and with the richest traditions.
Thisexceptionallydesigned,undeniablyattractivetimepiece
alsohasasuperiordesignquality.Usingonlythehighestvalue
materialsandcomponents,yourUNIONGLASHÜTTE/SA.®
watchisprotectedagainstshocks,temperaturevariations,
water and dust.
Itssapphirecrystalhasadoublesidedanti-reflectivecoat-
ing,anditisdrivenbyamechanicalmovementchronograph
U7750withautomaticwindinganddayanddateindicator.
Toensureperfectandaccuraterunningformanyyearsto
come,werecommendyouattentivelyfollowtheadvicegiven
in these instructions.
We hopeyouwill beverypleasedwithyourUNION
GLASHÜTTE/SA.® timepiece !
USE
Winding
Crown in position I, not pulled out
Manualwindingisnecessaryifyouhavenotwornyourwatch
forsomeconsiderableperiodoftime.Torestartit,youonly
needtoturnthecrownafewtimes(clockwise),ortotilt
yourwatchfromsidetosideafewtimes.Torestoreyour
watch's46hourpowerreserve,around32turnsofthe
crown(forward)arerequired.
Whenwearingyourwatch,theautomaticdevicewindsit
everytimeyoumoveyourwrist.
Notes
Theaccuracymaybeinfluencedbythewearingconditions.
Thereisnostopofthecrownatfullwinding.
Setting the time
Crown in position III, pulled out
PullthecrownouttopositionIIIcarefully;theseconds
hand (3)willstop.Turnthecrownforwardsorbackwardsto
set the desired time.
Oncethehourhandpassesthe12o'clockposition,youcan
seeifitisindicatingmidnight(dateanddaywillchange)or
midday (date and day will not change).
Advice on how to synchronise your watch
To synchronise the seconds hand (3)withanofficialtime
signal(radio/TV/Internet),pulloutthecrowntopositionIII;
thesecondshandwillstop.Atthesignal,pushthecrownback
into the rest position I.
Day and date correction
Crown in position II, intermediate
PullthecrownouttopositionII,turnitforwardstosetthe
date or backwards to set the desired day and then push
it back into the rest position I. During this operation, your
watch will continue running, so the time will not need to be
re-set.
Important
Never correct the date and/or day between 8 p.m. and 2 a.m.;
the movement is changing the date and the day.
Chronograph function
PresstheStart/Stoppush-button(9) to start the chrono-
graph.PresstheStart/Stoppush-button(9) again to stop
it.ThechronographwillresumeiftheStart/Stoppush-
button (9) is pressed again (added times), or the three
chronograph hands (5, 6 and 7)willreturntozeroifpush-
button (10) is pressed.
www.union-glashuette.com U-7750_EN/2013
U-7750
3/3
DEUTSCHE UHRMACHERKUNST.1893
Notes
The 12 hour counter (7) has an area with alternating col-
ours(black/white)indicatingeveryhalfhour,matchingthe
outer numerals (0 to 30 minutes) and inner numerals (30 to
60minutes)ofthesamecolouronthe30minutecounter(7).
Dependingonthemodelyouhavechosen,thecoloursof
the 12 hour counter area (7)mayvary(e.g.white/red,black/
red, white/yellow, etc.), but they always match the numerals
on the 30 minute counter.
Tachymeter
Startthechronographandstopitonceadistanceof1km
hasbeencoveredbypressingtheStart/Stoppush-button(9).
The chronograph hand will be pointing to a numeral on the
tachymeter scale (8), indicating the speed in km/h.
CARE AND MAINTENANCE
Wewouldadviseyoutocleanyourwatchregularly(except
fortheleatherstrap)usingasoftclothandlukewarmsoapy
water.Afterimmersioninsaltwater,rinsethewatchinfresh
waterandleaveittodrycompletely.
Ensurethatyoudonotleaveitinplacessubjecttogreat
temperatureandhumidityvariations,inintensesunlightor
nearstrongmagneticfields.
Werecommendyouhaveyourwatchinspectedevery3
to4yearsbyyourapproveddealeroragent.Foranirre-
proachablemaintenanceserviceandtoensurethewarranty
remainsvalid,alwaysapproachanapproveddealeroragent.
Water resistance precautions
Yourwatchiswaterresistantbut,followingashock,itmay
lose its water resistance without you realising. Water resist-
ance must be checked up during its scheduled inspection.
Important
In the event of failure of your watch, entrust it only to an
approved dealer or agent (see the warranty).
www.union-glashuette.com U-7750_EN/2013
U-7750
/