IWC Portofino Chronograph Watch - 42.0 mm Stainless Steel Case - Silver Dial - Dark Brown Alligator Strap - IW391027 Four-Year black structured rubber strap with

black structured rubber strap with orange stitching and lining

chronometer

illuminated with Super LumiNova

40 mm 18K pink gold case

38 mm brushed 18K yellow gold case

IWC Portofino Chronograph Watch - 42.0 mm Stainless Steel Case - Silver Dial - Dark Brown Alligator Strap - IW391027 Four-Year black structured rubber strap with42. 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, dark brown alligator leather strap. Water resistant to 3 bar.