Junghans 688.10 (Valjoux 7734)
Mechanical
Date
Chronograph
No photos yet
Notes
3 different reset hammers (cf. Valjoux 7733)
Dimensions
| Width | 31 lignes (69.93 mm) |
|---|---|
| Height | 6.65 mm |
| Stem height | 1.25 mm |
| Hands (H × M × S) | 1.4 × 0.95 × 0.27 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 | Yes |
| Day | No |
| Hacking | No |
| Chronograph | Yes |
Mainspring
| GR code | Zf1337 |
|---|---|
| Height | 12.5 mm |
| Thickness | 0.13 mm |
| Length | 430 mm |
| Barrel diameter | 1.6 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Junghans |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions