Case material: Yellow gold; Charge: Automatic; Conditions: New Year : 2000; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: nessuna Nautilus 5712 - 18K White Gold Nautilus case. Slate gray dial, gold applied hour markers with luminescent coating. Moon phases, date by hand and power reserve indication. Seconds subdial. Mechanical self-winding movement with micro-rotor (Caliber 240 PS IRM C LU), with the Geneva seal hallmark. Screw-down crown. Fold-over clasp. Sapphire-crystal case back. Water resistant to 60 m