Seiko 7R87 Movement Details

Seiko caliber 7R87 is a high grade spring drive (hand winding) watch movement.

Sub-brands: Credor
Power reserve:48 hours
Accuracy:±15 seconds/month
Day / date?Date only
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:32,768 Hz
Number of jewels:30
Notes:Has a power reserve indicator.
PDF guides:
Related movements: 5R77 7R88 7R89 7R99