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Guild Home > Calibers > Waltham > Waltham 1891

Waltham 1891 Movement Specifications, Beat Rate & Dimensions

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Technical Caliber Datasheet

ManufacturerWaltham
Caliber ReferenceWaltham 1891
Movement TypeManual
Diameter (Lignes)—
Diameter (mm)—
Height / Thickness4.6 mm
Jewel Count15 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1891

Historical Reference & Restoration Notes

The Waltham 1891 is a celebrated example of vintage precision engineering. Featuring 15 jewels and operating at 18,000 BPH, surviving examples are prized by collectors and restorers.

Restoration enquiries:
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