FHF 691N
Mechanical
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Notes
1976- (691: 1972-1976)
equivalent calibres of the brands Durowe (INT), FHF, Standard
Dimensions
| Width | 15.3 lignes (34.51 mm) |
|---|---|
| Height | 4.2 mm |
| Stem height | 0.8 mm |
| Hands (H × M × S) | 1.1 × 0.6 × 0.18 mm |
Technical data
| Beat rate | 21,600 vph (3 Hz) |
|---|---|
| Lift angle | 52 ° |
| Power reserve | 48 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | FHF |
| Year | — |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions