A Universal Genève Tri-Compax jumbo steel cased triple calendar moonphase chronograph wristwatch, circa 1940s/50s, the signed jewelled 287 caliber movement numbered '220164', the signed silvered dial with luminous Arabic hour numerals, outer tachymeter scale, four subsidiary dials for seconds, date with moonphase, 30-minute and 12-hour registers, and day and month apertures, the case back numbered '1106255' above '22545', the signed case interior detailed 'Enversteel Swiss', case diameter 3.7cm, on a black leather strap, total length 22.5cm.