MAINSPRING, 21/0
For Seiko 1600-5710
284201/HAM
Alternate: 2518/HAM
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Rolex 23 | CHRONO | 13 |
| Citizen 4-156170 | CITIZEN CASE | |
| Jules Jurgenson Y573 | ||
| Rolex 23 | CHRONO | 13 |
