IWC Portugieser Perpetual Calendar Watch - 44.2 mm 5N Gold Case - Slate Dial - Black Alligator Strap - IW503404

44.2 mm 18K 5N gold case, 14.9 mm thick, see-through sapphire glass back, arched-edge sapphire glass crystal with antireflective coating on both sides, slate-coloured dial, calibre 52615 automatic movement with date, day, month, perpetual calendar, year indicator, hours, minutes, small seconds, moonphase, power reserve indicator, approximately 168 hours of power reserve, black alligator leather strap by santoni. Water resistant to 3 bar.