Junghans J71 old
Mechanical
c. 1932
No photos yet
Notes
1932-
open face calibre
pin-lever escapement
ratchet on dial side, crown mechanism with rocker bar
later 6.75x8" calibre with same designation
Dimensions
| Width | 36 lignes (81.21 mm) |
|---|---|
| Height | 6.8 mm |
| Stem height | 0.8 mm |
| Hands (H × M × S) | 1.83 × 0.54 × 0.25 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 36 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 15 mm |
| Thickness | 0.21 mm |
| Length | — |
| Barrel diameter | 2.3 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Junghans |
| Year | c. 1932 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions