IWC Portofino Chronograph Watch - 42.0 mm 5N Gold Case - Blue Dial - Black Alligator Strap - IW391035 Britain black monobloc ceramic Cerachrom bezel

black monobloc ceramic Cerachrom bezel with engraved tachymetric scale

quartz Cartier caliber 059 movement

approximately 57 hours of power reserve

caliber 8971 MC manual winding movement

IWC Portofino Chronograph Watch - 42.0 mm 5N Gold Case - Blue Dial - Black Alligator Strap - IW391035 Britain black monobloc ceramic Cerachrom bezel42. 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.