Omega 640
Mechanical
c. 1963
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Notes
1963-
straight lever (ligne angulaire)
Dimensions
| Width | 12.4 lignes (27.97 mm) |
|---|---|
| Height | 2.85 mm |
| Stem height | — |
| Hands (H × M × S) | 0.7 × 0.4 × ? mm |
Technical data
| Beat rate | 19,800 vph (2.75 Hz) |
|---|---|
| Lift angle | 53 ° |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR2628-X |
|---|---|
| Height | 1.1 mm |
| Thickness | 0.11 mm |
| Length | 360 mm |
| Barrel diameter | 11 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Omega |
| Year | c. 1963 |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions