Uni-Compax" Universal Genève

"Uni-Compax" Universal Genève, "Uni-Compax". Made in the 1950s. Fine and rare, large, 18K pink gold wristwatch with square button chronograph, register and tachometer. Three-body, solid, polished and brushed, concave lugs. Brushed silver with applied pink gold dart indexesand Arabic 12, outer fifths of a seconds and minute track with Arabic five minute/second numerals, extreme outerblue painted tachometer scale, subsidiary seconds and 45-minute register dials. Pink gold "dauphine" hands. Cal. 285, rhodium plated, 17 jewels, straight line lever escapement, monometallic balance, self-compensatingBreguet balance-spring, index regulator.Dial, case and movement signed.Diam. 37 mm. Thickness 12 mm.