UPPER BALANCE SPRING
For Seiko 8S21-6020
5110/557
Alternate: 5105/ST 51
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova C888015 | BULOVA CASE REFERENCE | |
| Bulova C888015 | BULOVA CASE REFERENCE | |
| Seiko 9520A | ||
| Seiko H357-5170 | SEIKO CASE REFERENCE |
