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Rolex 640 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Rolex |
| Caliber Reference | Rolex 640 |
| Movement Type | Automatic |
| Diameter (Lignes) | — |
| Diameter (mm) | 26.4 mm |
| Height / Thickness | — |
| Jewel Count | 17 Jewels |
| Beat Rate / Frequency | 18,000 BPH |
| Lift Angle | 51° |
| Power Reserve | 38 hours |
| Escapement | Swiss Lever |
| Production Period | 1950 |
Historical & Mechanical Notes
The Rolex 640 is a celebrated example of vintage precision engineering. Featuring 17 jewels and operating at 18,000 BPH, surviving examples are prized by collectors and restorers.
Restoration enquiries:
Other Rolex Movements
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