JEWEL, UPPER REDUCTION GEAR
For Gaskets 8656B
401/640
Alternate: 1106/OME 563
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| ETA 255.513 | QUARTZ CALENDER THERMO-COMPENSATION | 10.5 |
| Hamilton 55615 | HAMILT CASE REFERENCE |
