Seiko 8M25 is a multi-function quartz watch with stopwatch, timer, and alarm functions. The stopwatch can measure up to 60 minutes in 0.2-second increments, and the timer can be set for up to 60 minutes. The alarm can be set to sound once a day or multiple times a day. The watch also features a tachymeter for measuring speed and a water resistance of up to 10 bar.