UNIVERSAL GENEVE 18k yellow gold Tri-Compax chronograph

UNIVERSAL GENEVE 18k yellow gold Tri-Compax gents chronograph with complete calendar, Switzerland around 1945, manual winding, 3- piece construction case, snap on case back & bezel, correction pusher at the side has to be repaired, winding crown later, silvered dial restored, gilded indices & hands, gold plated movement calibre 287 with intermediate wheel, 17 jewels, Glucydur-balance with Breguet- hairspring, diameter approx. 37 mm, needs to be overhauled, condition 3, from the estate of a collector