BREGUET HAIRSPRING
For Seiko 1E20-639B
A/3423
Alternate: 1142/UNI 215
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| ETA 2567 | 11.5 | |
| MSR H9 | 7.75 | |
| Omega 14379 | OMEGA CASE - USES CALIBER 540 | |
| Omega 511.254 | OMEGA CASE USES CALIBER 484 |
