Case material: Steel; Charge: Automatic; Conditions: Used Presentation condition : With dealer guarantee ; Model: Nautilus Price on request Gmtbroker Reference: 5712/1A-001 A  Stainless Steel Power Reserve Moonphase Nautilus Gents Wristwatch, black-blue dial with applied hour markers,   small seconds at 4 0'clock ,  date and moonphase indicator at 7 0'clock,  48 hour power reserve indicator between 10 and 11 0'clock, a fixed stainless steel bezel,  a stainless steel bracelet with a stainless steel double deployant clasp, sapphire glass,  exhibition caseback,  automatic movement, in excellent condition,  comes with a Patek Philippe box, our own certificate of authenticity and our own one year warranty.