Technical data
| Manufacturer: | UMF |
| Caliber: | 39-22 (32-12) |
| Size: | 8 3/4''' |
| A/h: | 18000 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel anular balance |
| Shock protection(s): |
Antichoc 102 |
| Balance bearing / direction hairspring: | Clockwise |
| Moveable stud: | no |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| Features: |
|
| References: |
Flume: K3 17 |