FEF 40B
Mechanical
No photos yet
Notes
open face calibre
options:
bimetallic screw balance,
Breguet hairspring
except varying bridge layouts no differences known between 40, 42, 44, 46, 48
Dimensions
| Width | 42.15 lignes (95.08 mm) |
|---|---|
| Height | 4.2 mm |
| Stem height | 0.35 mm |
| Hands (H × M × S) | 1.85 × 1.95 × 1 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 39 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR4362 |
|---|---|
| Height | 1.5 mm |
| Thickness | 0.21 mm |
| Length | 440 mm |
| Barrel diameter | 16 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | FEF |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions