Bifora 91/1
Mechanical
c. 1964
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Notes
1964-
in later samples setting lever with pin instead screw, and minute wheel with pin (Fig.3, 4)
these parts can be used for older samples (Fig.1, 2), if the minute-wheel pin is removed from the plate, and/or a modified setting-lever spring is used
Dimensions
| Width | 21.3 lignes (48.05 mm) |
|---|---|
| Height | 3.4 mm |
| Stem height | 0.55 mm |
| Hands (H × M × S) | 1.4 × 0.85 × 0.22 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 44 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf665 |
|---|---|
| Height | 8.5 mm |
| Thickness | 0.1 mm |
| Length | 265 mm |
| Barrel diameter | 1.2 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Bifora |
| Year | c. 1964 |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions