IWC 18k yellow gold gents wristwatch, Switzerland around 1957, self...

IWC 18k yellow gold gents wristwatch, Switzerland around 1957, self winding, 3-piece construction case slightly dent, snap on case back and bezel, silvered dial with applied gilded hour-indices due to age spotty/patinated, gilded hands, rhodium plated movement with decoration polishing, calibre 852, 21 jewels, precision adjustment, Breguet-hairspring, diameter approx. 34 mm, condition 2-3, property of a collector