MAINSPRING 8-DAY 37/S
For Seiko 1F20-5B50
400/1540
Alternate: 1347/OME 640
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova 9671127 | ||
| Gruen FEL 4017N | FELSA 4017N | |
| Seiko V301-6A60 | SEIKO CASE REFERENCE COSERVE 2003/2004 |
