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Guild Home > Calibers > Hampden > Hampden Model 4 Wm.McKinley

Hampden Model 4 Wm.McKinley Movement Specifications, Beat Rate & Dimensions

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Technical Caliber Datasheet

ManufacturerHampden
Caliber ReferenceHampden Model 4 Wm.McKinley
Movement TypeManual
Diameter (Lignes)—
Diameter (mm)43.15 mm
Height / Thickness6.8 mm
Jewel Count21 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1902

Historical Reference & Restoration Notes

The Hampden Model 4 Wm.McKinley 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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