Specifications
| Lignes | 10 ‴ |
|---|---|
| Mounting Diameter | 22.5 |
| Thickness | 4 |
| Frequency (vph) | 18,000 |
| Jewels | 15, 17, 18 |
| Power Reserve | 38 |
| Hand Sizes | 1.20, 0.60 |
| Power | Manual |
| Shape | Round |
| Size | Medium |
Notes
Precursor to 10.68N 10.85: open face calibre, 10.86: hunter calibre, Designed by Alfred Pfister