IWC Portugieser Perpetual Calendar 42 - 18K 5N Gold Case - Silver-Plated Dial - IW344202

42.4mm 18K 5N gold case, 13.8mm thick, see-through sapphire glass back, convex sapphire glass crystal with antireflective coating on both sides, silver-plated dial, calibre 82650 automatic movement with hours, minutes, small seconds, approximately 60 hours of power reserve. Water resistant to 3 bar.