Rolex 645
Mechanical
Self-winding (rotor)
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Notes
1931- (Rolex 630)
Breguet hairspring
detached manual wind (Fig.6)
Dimensions
| Width | 26 lignes (58.65 mm) |
|---|---|
| Height | 7.4 mm |
| Stem height | 0.4 mm |
| Hands (H × M × S) | 1.3 × 0.75 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | 52 ° |
| Power reserve | 41 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3629-X |
|---|---|
| Height | 1.4 mm |
| Thickness | 0.09 mm |
| Length | 300 mm |
| Barrel diameter | 8.5 mm |