IWC Schaffhausen Portofino ref 1W356501 A stainless steel wristwatch with date, recent. Dial: silvered Calibre: cal. 35111 automatic, fully jewelled. Case: stainless steel round. Case number: 5535656. Closure: stainless steel IWC buckle. Dimensions: 40 mm diameter. Signed: case, dial and movement. Accessories: none