Junghans 687.70 (J87)
Mechanical
c. 1961
No photos yet
Notes
1961-1966
Dimensions
| Width | 25.55 lignes (57.64 mm) |
|---|---|
| Height | 4.5 mm |
| Stem height | — |
| Hands (H × M × S) | 1.41 × 0.79 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 45 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf607 |
|---|---|
| Height | 10.5 mm |
| Thickness | 0.12 mm |
| Length | 320 mm |
| Barrel diameter | 1.15 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Junghans |
| Year | c. 1961 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions