Felsa 90
Mechanical
No photos yet
Notes
earlier 5.25" calibre with same designation
differences not known between 90, 186, 245
Dimensions
| Width | 21.7 lignes (48.95 mm) |
|---|---|
| Height | 3.4 mm |
| Stem height | — |
| Hands (H × M × S) | 1.2 × 0.6 × ? mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR4851 |
|---|---|
| Height | 1.7 mm |
| Thickness | 0.09 mm |
| Length | 240 mm |
| Barrel diameter | 7.5 mm |