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Brac 40 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Brac |
| Caliber Reference | Brac 40 |
| Movement Type | Manual |
| Diameter (Lignes) | — |
| Diameter (mm) | 30.3 mm |
| Height / Thickness | 4.8 mm |
| Jewel Count | — |
| Beat Rate / Frequency | 18,000 BPH |
| Lift Angle | 315° |
| Power Reserve | 38 hours |
| Escapement | Pin Lever |
| Production Period | 1950 |
Historical & Mechanical Notes
The Brac 40 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 Ranfft Watch Movement Archive.
Restoration enquiries:
Other Brac Movements
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