Landeron 47
Mechanical
Chronograph
No photos yet
Notes
1937
option: 3 pushers (reset with crown pusher)
first chronograph with cam switching
just shortly produced predecessor of the Landeron-48 family
From the Landeron 47 to the 48 there was a floating transition. Many parts were modified, but except the minute-recorder jumper all are interchangable. Samples with all features of the Landeron 47 (like the examples) are pretty rare, and therefore can be dated to the first production year.
Dimensions
| Width | 31 lignes (69.93 mm) |
|---|---|
| Height | 6.2 mm |
| Stem height | 0.6 mm |
| Hands (H × M × S) | 1.85 × 1.3 × 0.25 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 | Yes |
Mainspring
| GR code | GR3530 |
|---|---|
| Height | 1.35 mm |
| Thickness | 0.15 mm |
| Length | 380 mm |
| Barrel diameter | 12 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Landeron |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions