MAINSPRING, STR .087
For Seiko 6530-6030
721/442
Discontinued: Yes, use MSS-WA75
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen 4-230710 | CITIZEN CASE | |
| Citizen 4-913680 | CITIZE CASE REFERENCE | |
| Seiko 1E50-5150 | SEIKO CASE REFERENCE | |
| Seiko 6602A | CAL DSS | 10.5 |
| Valjoux 55 | 17.67 |
