Seiko Y187 Movement Details

Seiko caliber Y187 is an analog quartz watch movement. Production was in the 1980s.
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Battery:SR927SW / 395 (Silver oxide)
Accuracy:±20 seconds/month
Day / date?Date only
GMT / world time?No
Chronograph?Yes
Hacking?Yes
Rate:32,768 Hz
Notes:Has a low battery warning function, indicated by the second hand moving at two-second intervals.
PDF guides: Battery replacement guide
Related movements: Y182