FOURTH WHEEL, SS HT 4.90
For Wittnauer CMU3138
X/6301
Alternate: 2557/1/FF 138.0
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Seiko 4300-3189 | SEIKO CASE REFERENCE | |
| Seiko Y563-8380 | PULSAR CASE REFERENCE |
