MAINSPRING
For Seiko 5A74-3A70
400/363
Alternate: 3904L/ETE 600
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova 6506.17 | BASIC MIYOTA CALIBER 6P50 | |
| Master Time 112 | DIRECT CENTER SECOND-17 JEWEL | 11.5 |
