IWC Style No: IW658603 IWC Portofino Automatic 37 Watch - 18K 5N Gold Case - Dial - Black Calfskin Strap

37.0 mm 18K 5N gold case, 9.4 mm thick, see-through sapphire glass back, convex sapphire glass crystal with antireflective coating on both sides, calibre 32111 automatic movement with date, hours, minutes, seconds, approximately 120 hours of power reserve, black calfskin strap with quick-change system. Water resistant to 5.0 bar.