Vintage Universal Genève Uni-Compax Chronograph, Ref. 224100, Radium Dial, Cal. 285 from 1940'sThe Universal Genve Compax line holds a special place in chronograph history. Introduced in 1936, the series quickly became one of the brands defining achievements, eventually expanding into the Aero Compax, Uni Compax, Tri Compax, and Dato Compax families. This vintage Universal Genve Uni Compax, reference 224100, represents the pure two register chronograph format. The stainless steel case reflects its original role as a functional tool watch, while