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Buser Frères Buser 7 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Buser Frères |
| Caliber Reference | Buser 7 |
| Movement Type | Manual |
| Diameter (Lignes) | — |
| Diameter (mm) | 12.8 mm |
| Height / Thickness | 3.35 mm |
| 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 Buser Frères Buser 7 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. For further technical reference on vintage watch movements, consult the Wikipedia: jewel bearings in watchmaking.
Restoration enquiries:
Other Buser Frères Movements
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