This Patek Philippe Nautilus 5712R-001 features a Mechanical self-winding movement, Caliber 240 PS IRM C LU, Moon phases, date by hand and power reserve indication, Seconds subdial, Black-brown dial, gold applied hour markers with luminescent coating, Screw-down crown, Fold-over clasp, Sapphire-crystal case back, Water resistant to 60 m, rose gold, Case diameter (10-4 o’clock): 40 mm.