Junghans J10
Mechanical
c. 1911
No photos yet
Notes
1911-1924
open face calibre
ratchet on dial side, crown mechanism with rocker bar
watch and alarm driven by a single barrel:
A device makes 2 revolutions of the mainspring arbor available for the alarm; the clutch wheel for the alarm works simultanously as ratchet.
The alarm loudness is adjustable to certain extent with a screw at 5:30h (under bezel), but a louder alarm reduces the alarm duration.
Dimensions
| Width | 41.4 lignes (93.39 mm) |
|---|---|
| Height | 8.2 mm |
| Stem height | 1.7 mm |
| Hands (H × M × S) | 3.45 × 2 × 1.4 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf3923 |
|---|---|
| Height | 17 mm |
| Thickness | 0.21 mm |
| Length | 490 mm |
| Barrel diameter | 2.6 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Junghans |
| Year | c. 1911 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions