IWC Style No: IW391035 IWC Portofino Chronograph Watch - 42.0 mm 5N Gold Case - Blue Dial - Black Alligator Strap

42.0 mm 18K 5N gold case, 13.6 mm thick, convex sapphire glass crystal with antireflective coating on both sides, blue dial, calibre 75320 automatic movement with date, day, chronograph, hours, minutes, small seconds, approximately 44 hours of power reserve, black alligator leather strap. Water resistant to 3 bar.