Seiko 7R87 Movement Details
Seiko caliber 7R87 is a high grade Spring Drive (hand winding) watch movement.
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| 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 |