REDUCTION WHEEL #1
For Seiko 2320-6550
683401/HAM
Alternate: 7607/HAM
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen 20-4064 | CITIZE CASE REFERENCE | |
| Citizen 4-955340 | CITIZEN CASE | |
| Omega 7646 | OMEGA CASE USES CALIBER 480 | |
| Seiko W401-4180 | SEIKO CASE REFERENCE COSERVE 2003/2004 |
