IWC Portugieser Perpetual Calendar Watch - 44.2 mm White Gold Case - Slate Dial - Black Alligator Strap - IW503301

44.2 mm 18K white 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 52610 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.