1947
Specifications
| Lignes | 10.5 ‴ |
|---|---|
| Mounting Diameter | 23.3 |
| Thickness | 3.5 |
| Frequency (vph) | 18,000 |
| Jewels | 17 |
| Power Reserve | 44 |
| Hand Sizes | 1.34, 0.76, 0.20 |
| Power | Manual |
| Shape | Round |
| Size | Medium |
Notes
The 23Z was designed to be thinner than the 10.68z but more robust than the thinner and more delicate 23M. It was also designed to be more easily machine manufactured with less human interventions than the 23M.