MAINSPRING
For Seiko 1F20-5A89
400/81
Alternate: 307/ETA 980
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova C867200 | BULOVA CASE REFERENCE | |
| Omega 7665 | OMEGA CASE USES CALIBER 484 AND 650 | |
| Seiko 4N21-0510 | SEIKO CASE REFERENCE COSERVE 2003/2004 |
