ETA 1309
Mechanical
Self-winding (rotor)
No photos yet
Notes
equivalent automatic family Eterna 1319...1324 with ball bearing
differences not known between 1309, 1315
Dimensions
| Width | 20.5 lignes (46.24 mm) |
|---|---|
| Height | 5.6 mm |
| Stem height | 1 mm |
| Hands (H × M × S) | 1.3 × 0.8 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 34 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3486-X |
|---|---|
| Height | 1.35 mm |
| Thickness | 0.09 mm |
| Length | 260 mm |
| Barrel diameter | 8 mm |