Yellow gold-tone 18kt yellow gold case and bracelet. Fixed yellow gold-tone 18kt yellow gold bezel. Gold-tone dial with yellow gold-tone hands. Dial Type: Analog. Luminescent hands. Audemars Piguet Calibre 5909 automatic movement with a 60-hour power reserve. Scratch resistant sapphire crystal. Transparent see through case back. Round case shape, case size: 37 mm, case thickness: 9.1 mm. Fold over clasp with a safety release. Water resistant at 50 meters / 165 feet. Functions: hour, minute, second. Additional Info: original box, international warranty card, manual (complete accessories). Royal Oak Series. Luxury watch style. Watch label: Swiss Made. Audemars Piguet Royal Oak Automatic Gold Dial Unisex Watch 15550BA.OO.1356BA.02.