WRISTWATCH, IWC, PORTOFINO, 1980s. Yellow gold 750. Ref. 3331. Flat case No. 2393765 with name engraved on the back. White dial with applied indices and gold-coloured hands, central second, date at 3h.
IWC 1970s Yacht Club 2 18K 750 Solid Gold Vintage Mens - Etsy