Felsa 220
Mechanical
No photos yet
Notes
bimetallic screw balance
stem mechanism without setting-lever spring
bridge shapes perhaps differing from shown Ebel 8.75"
differences not known between 158, 159, 185, 208, 212, 220, 238, 246, 251, 259, 261, 277
Dimensions
| Width | 19.45 lignes (43.88 mm) |
|---|---|
| Height | 3.55 mm |
| Stem height | — |
| Hands (H × M × S) | 1.25 × 0.7 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 35 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR2578 |
|---|---|
| Height | 1.1 mm |
| Thickness | 0.08 mm |
| Length | 220 mm |
| Barrel diameter | 6.5 mm |