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AHO 1021A Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | AHO |
| Caliber Reference | AHO 1021A |
| Movement Type | Manual |
| Diameter (Lignes) | — |
| Diameter (mm) | 23.69 mm |
| Height / Thickness | 4.4 mm |
| Jewel Count | 21 Jewels |
| Beat Rate / Frequency | 18,000 BPH |
| Lift Angle | 51° |
| Power Reserve | 38 hours |
| Escapement | Swiss Lever |
| Production Period | 1960 |
Historical & Mechanical Notes
The AHO 1021A is a celebrated example of vintage precision engineering. Featuring 21 jewels and operating at 18,000 BPH, surviving examples are prized by collectors and restorers.
Restoration enquiries:
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