Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Nautilus Price on request Gmtbroker Reference: 5726/1A-001 Latest to Patek's Nautilus Collection... Patek Philippe 5726/1A-001 Annual Calendar Moonphase Latest Model --- "An Instant Hit" A powerful & striking watch - will definitely draw attention & makes for a great conversation piece. The 5726A is the first Nautilus model with an Annual Calendar. Patek Philippe designed it to be casually elegant with its large stainless steel case, Stainless Steel and sleek black/grey dial. - Mechanical self-winding movement - Caliber 324 S QA LU 24H/303 - Annual Calendar - Moon phases and 24-hour dial - Sweep seconds hand - Black dial, gold applied hour markers with luminescent coating - Steel bracelet with Nautilus fold-over clasp Movement: - Mechanical self-winding movement - Caliber 324 S QA LU 24H/303 - Annual Calendar - Moonphase - Day, date, month in apertures - (in-line apertures) - Center sweep Seconds hand -  Diameter: 33.3 mm - Height: 5.78 mm Also known as: Patek Philippe 5726/1A-001, Patek 5726/1A-001, 57261A001, Patek 5726-1A-001, Patek 5726