IWC oversized 18k yellow gold wristwatch Portofino reference 5251, manual winding, Switzerland 1980´s, 3-piece construction case including original leather strap with original 18k yellow gold buckle, on both sides glazed, snap on case back and bezel, enamel colored dial with Roman hours, display of hours, minutes, constant second at 9 & moon phase at 6, fine, gold-plated bar construction lever movement, 19 jewels, calibre 9521 with fausses cotes decoration, pressed chatons, adjusted in 5 positions, stop-second, diameter approx. 46 mm, property of a collector, original box (damaged), papers & additional IWC leather strap with gold plated buckle enclosed, condition 2