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AHO 1057 Movement Specifications, Beat Rate & Dimensions

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Technical Caliber Datasheet

ManufacturerAHO
Caliber ReferenceAHO 1057
Movement TypeManual
Diameter (Lignes)—
Diameter (mm)23.7 mm
Height / Thickness4.6 mm
Jewel Count17 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1955

Historical & Mechanical Notes

The AHO 1057 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.

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