American Watch Guild
Historical Archive of American Horology & Vintage Timepieces
Guild Home > Gruen > Gruen 106

Gruen 106 Movement Specifications, Beat Rate & Dimensions

Technical Caliber Datasheet

ManufacturerGruen
Caliber ReferenceGruen 106
Movement TypeManual
Diameter (Lignes)
Diameter (mm)12.85 mm
Height / Thickness3.4 mm
Jewel Count15 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1928

Historical Reference & Restoration Notes

The Gruen 106 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 AntiqueWrist Workshop.

Other Gruen Movements

Gruen 107Gruen 115Gruen 116Gruen 117Gruen 119Gruen 179Gruen 210Gruen 211
© 2026 American Watch Guild Archive. All rights reserved.