Vintage Universal Genève Uni-Compax Chronograph, Ref. 42402, Cal. 285, Patina Dial from 1942The 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. What makes this particular example remarkable is the dial. Original, with radium and completely untouched, it has developed a rich tropical patina a cream base mottled with irregular brown spotting