Universal Geneve Calibre 285 Movement Specifications, Beat Rate & Dimensions

Technical Caliber Datasheet

Manufacturer	Universal Geneve
Caliber Reference	Calibre 285
Movement Type	In-House Chronograph
Diameter (Lignes)	14'''
Diameter (mm)	31.7
Movement Thickness	6.3
Jewel Count	17 Jewels
Vibrations Per Hour	18,000 BPH (2.5 Hz)
Balance Lift Angle	50°
Power Reserve	44 hours
Escapement Type	Martel column wheel
Shock Protection System	Solid chatons
Production Era	1938-1955
Wristwatch Conversion Rating	Compax / Uni-Compax pilot watches

Historical & Mechanical Notes

The Universal Geneve Calibre 285 is revered among horologists for its mechanical architecture and precision timing characteristics. Operating with an oscillation rate of 18,000 BPH and a 50° lift angle, this movement exemplifies vintage fine watchmaking standards.