MAINSPRING, 21/0
For Citizen 31-2088
450/354
Alternate: 4326/MST
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Pulsar 539A | ||
| Citizen 8521A | QUARTZ ANALOG SS | |
| Citizen SD2092 | CITIZE CASE REFERENCE | |
| Pulsar 539A |
