UPPER ESCAPE CAP JEWEL UNIT
For Seiko Y109-5010
440/384
Alternate: 3419/MST
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Forster 2080 | REGULAR AND SWEEP SECOND-ROCKING BAR | 8.75 x 11 |
| Girard Perregaux 120 9204 |
