Eterna 12678 (ETA 2678)
Mechanical
c. 1970
Self-winding (rotor)
Date
Day
Hacking
No photos yet
Notes
1970-
temporary or optionally micrometer regulator (cf. Eterna 12660)
Dimensions
| Width | 17.2 lignes (38.8 mm) |
|---|---|
| Height | 5.35 mm |
| Stem height | 1.7 mm |
| Hands (H × M × S) | 1.2 × 0.7 × 0.2 mm |
Technical data
| Beat rate | 28,800 vph (4 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 39 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | Yes (quick set) |
| Day | Yes (quick set) |
| Hacking | Yes |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 6.5 mm |
| Thickness | 0.08 mm |
| Length | 290 mm |
| Barrel diameter | 1.32 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Eterna |
| Year | c. 1970 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions