Gruen 216 Movement Specifications, Beat Rate & Dimensions
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Technical Caliber Datasheet
Manufacturer
Gruen
Caliber Reference
Gruen 216
Movement Type
Manual
Diameter (Lignes)
—
Diameter (mm)
15.35 mm
Height / Thickness
3.4 mm
Jewel Count
15 Jewels
Beat Rate / Frequency
18,000 BPH
Lift Angle
51°
Power Reserve
38 hours
Escapement
Swiss Lever
Production Period
1955
Historical Reference & Restoration Notes
The Gruen 216 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.