ETA 1311
Mechanical
No photos yet
Notes
differences not known between 1301-1304, 1311, 1312
Dimensions
| Width | 19.4 lignes (43.76 mm) |
|---|---|
| Height | 4.25 mm |
| Stem height | 0.8 mm |
| Hands (H × M × S) | 1.3 × 0.8 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | 52 ° |
| Power reserve | 40 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3496 |
|---|---|
| Height | 1.35 mm |
| Thickness | 0.09 mm |
| Length | 240 mm |
| Barrel diameter | 7.5 mm |