FHF 34-21
Mechanical
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Notes
different bridge shapes (cf. FHF 35)
Dimensions
| Width | 17.2 lignes (38.8 mm) |
|---|---|
| Height | 2.9 mm |
| Stem height | 0.7 mm |
| Hands (H × M × S) | 1.2 × 0.6 × ? mm |
Technical data
| Beat rate | 21,600 vph (3 Hz) |
|---|---|
| Lift angle | 52 ° |
| Power reserve | 44 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf837 |
|---|---|
| Height | 7.5 mm |
| Thickness | 0.09 mm |
| Length | 230 mm |
| Barrel diameter | 1.3 mm |