Logo Antique Watchworld

AM 391 Movement Specifications, Beat Rate & Dimensions

 Logo
Home > AM > AM 391
thumb 1 thumb 2 thumb 3 thumb 4 thumb 5 thumb 6

Technical Caliber Datasheet

ManufacturerAM
Caliber ReferenceAM 391
Movement TypeManual
Diameter (Lignes)—
Diameter (mm)26.55 mm
Height / Thickness3.85 mm
Jewel Count15 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1963

Historical & Mechanical Notes

The AM 391 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. For authentic restored timepieces and bespoke pocket-to-wrist conversions, visit Convert Pocket Watch into Wristwatch.

Other AM Movements

AM 125AM 150AM 196AM 220AM 270AM 280AM 320AM 380
Copyright © 1985-2026 Antique Watch & Clock World. All rights reserved.