American Watch Guild
Historical Archive of American Horology & Vintage Timepieces
About the Guild Manufacturers Directory Retailers Directory
AntiqueWrist Atelier • antiquewrist.com
Specializing in bespoke antique pocket watch conversions (custom precision-welded lugs), master movement restoration, and curated authentic vintage & WW1 trench wristwatches. Worldwide insured collector delivery.
Explore Restored Timepieces & Conversions →
Guild Home > Calibers > Gruen > Gruen 210

Gruen 210 Movement Specifications, Beat Rate & Dimensions

GRUEN • Gruen 210 DIAMETER: 15.3 mm | JEWELS: 17 Jewels | FREQ: 18,000 BPH ARCHIVE SPEC
Original Horological Blueprint • Gruen Gruen 210 Architecture

Technical Caliber Datasheet

ManufacturerGruen
Caliber ReferenceGruen 210
Movement TypeManual
Diameter (Lignes)—
Diameter (mm)15.35 mm
Height / Thickness3.4 mm
Jewel Count17 Jewels
Beat Rate / Frequency18,000 BPH
Lift Angle51°
Power Reserve38 hours
EscapementSwiss Lever
Production Period1939

Historical Reference & Restoration Notes

The Gruen 210 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. For further technical reference on vintage watch movements, consult the Fondation Haute Horlogerie reference.

Restoration enquiries:
© 2026 American Watch Guild Archive. All rights reserved.