IWC 431
Mechanical
c. 1954
No photos yet
Notes
1954-1971, 48000
smallest IWC calibre
Dimensions
| Width | 11.7 lignes (26.39 mm) |
|---|---|
| Height | 3.25 mm |
| Stem height | — |
| Hands (H × M × S) | 1 × 0.5 × ? mm |
Technical data
| Beat rate | 19,800 vph (2.75 Hz) |
|---|---|
| Lift angle | 54 ° |
| Power reserve | 48 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | IWC |
| Year | c. 1954 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions