Seiko 8M25 Movement Details

Seiko caliber 8M25 is an analog quartz watch movement produced in the 1980s.

Battery:SR920W / 370 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Rate:32,768 Hz
Number of jewels:4
Size / diameter:25.5mm
Stem code: 351148
Development division:Daini (Kameido, Tokyo)
Notes:Has an alarm and countdown timer function. This movement only has two hands, with the minute hand being used as the counter for the chronograph and timer functions.
PDF guides: Battery reset guide
Technical guide for 8M25A & 8M25B
Related movements: 8M26 8M37