Case material: Yellow gold; Charge: Automatic; Conditions: Used Presentation condition : With dealer guarantee ; Model: Nautilus Price on request Gmtbroker Reference: 3800/1J An 18k  Yellow Gold Nautilus Gents Wristwatch, black-blue dial with applied hour markers, date at 3 0'clock , a fixed 18k yellow gold bezel, an 18k yellow gold bracelet with an 18k white gold deployant clasp, sapphire glass, automatic movement, in excellent condition, comes with a Patek Philippe box, our own certificate of authenticity and our own one year warranty.