Felsa 381 Bidynator
Mechanical
c. 1942
Self-winding (rotor)
No photos yet
Notes
1942-
first ladies calibre with bidirectional rotor winding,
design equvalent to the gents calibre Felsa 410, which was only produced in 1942
detached manual wind
differences not known between 380, 381
Dimensions
| Width | — |
|---|---|
| Height | 5.15 mm |
| Stem height | — |
| Hands (H × M × S) | 1.2 × 0.6 × 0.18 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 32 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf912 |
|---|---|
| Height | 6.5 mm |
| Thickness | 0.07 mm |
| Length | 220 mm |
| Barrel diameter | 1.35 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Felsa |
| Year | c. 1942 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions