IWC, STAINLESS STEEL 'PORTUGIESER CHRONOGRAPH' WATCH Maker: IWC Model: Portugieser Reference number: IW371446 Case size: Approx. 41 mm Case material: Stainless steel Dial: White Movement: Automatic Bracelet/Strap: Black leather with clasp signed IWC Functions: Chronograph Stamps: Case back: INTERNATIONAL WATCH CO. 5066721. Sold with: IWC box, instruction booklet and cleaning cloth