MAINSPRING, ALLOY
For Seiko Y480-5940
B691/SB
Alternate: B691/SB
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen 4-898117 | CITIZEN CASE | |
| Citizen 4-S23560 | CITIZEN CASE | |
| Seiko W650-4120 | SEIKO CASE 971201 |
