Junghans 660.70 (ETA 2440)
Mechanical
c. 1963
No photos yet
Notes
1963-1988
regulator, balance bearings from Junghans
indirectly driven minute allows a very big balance
Dimensions
| Width | 13.5 lignes (30.45 mm) |
|---|---|
| Height | 3.2 mm |
| Stem height | 0.8 mm |
| Hands (H × M × S) | 1 × 0.5 × ? mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 41 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 5.5 mm |
| Thickness | 0.06 mm |
| Length | 201 mm |
| Barrel diameter | 1.43 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Junghans |
| Year | c. 1963 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions