FHF 378
Mechanical
Date
Day
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Dimensions
| Width | 19.4 lignes (43.76 mm) |
|---|---|
| Height | 4.6 mm |
| Stem height | 1.9 mm |
| Hands (H × M × S) | 1.2 × 0.7 × 0.2 mm |
Technical data
| Beat rate | 21,600 vph (3 Hz) |
|---|---|
| Lift angle | 52 ° |
| Power reserve | 47 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | Yes |
| Day | Yes |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3615 |
|---|---|
| Height | 1.4 mm |
| Thickness | 0.09 mm |
| Length | 260 mm |
| Barrel diameter | 7.5 mm |