IWC Portofino Chronograph Watch – 42.0 mm Stainless Steel Case – Silver Dial – Black Alligator Strap – IW391031

42.0 mm stainless steel case, 13.6 mm thick, convex sapphire glass crystal with antireflective coating on both sides, silver-plated 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.