ETA 1227
Mechanical
c. 1947
No photos yet
Notes
1947-
differences not known between 1220, 1223, 1227-1233
Dimensions
| Width | 21.7 lignes (48.95 mm) |
|---|---|
| Height | 3.25 mm |
| Stem height | 1.2 mm |
| Hands (H × M × S) | 1.24 × 0.6 × 0.17 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 43 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3108 |
|---|---|
| Height | 1.25 mm |
| Thickness | 0.1 mm |
| Length | 260 mm |
| Barrel diameter | 8 mm |