Bifora 8.75" (Felsa 107)
Mechanical
No photos yet
Notes
bimetallic screw balance
transition from old Felsa 107 (without set-lever spring) to the new (big crown-wheel bearing)
The escape-wheel cap jewel was probably added by Bifora.
Dimensions
| Width | 19.45 lignes (43.88 mm) |
|---|---|
| Height | 3.3 mm |
| Stem height | 0.45 mm |
| Hands (H × M × S) | 1.2 × 0.7 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 33 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf662 |
|---|---|
| Height | 7.5 mm |
| Thickness | 0.09 mm |
| Length | 220 mm |
| Barrel diameter | 1.2 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Bifora |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions