MAINSPRING, ALLOY
For Seiko Y563-8079
721/1991
Alternate: REG &/FEF 6670
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen QC5152 | CITIZE CASE REFERENCE | |
| Seiko 9020-0010 | SEIKO CASE REFERENCE COSERVE 2003/2004 |
