Bifora 2025
Mechanical
c. 1928
No photos yet
Notes
1928-
first German wrist watch calibre with lever escapement, probably generally the first ever made
silvered
ratchet on dial side, crown mechanism with rocker bar
Dimensions
| Width | 20 lignes (45.12 mm) |
|---|---|
| Height | 4.6 mm |
| Stem height | 0.5 mm |
| Hands (H × M × S) | 1.23 × 0.65 × 0.18 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 40 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf1394 |
|---|---|
| Height | 10 mm |
| Thickness | 0.1 mm |
| Length | 340 mm |
| Barrel diameter | 1.7 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Bifora |
| Year | c. 1928 |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions