950 platinum case with a blue (alligator) leather strap. Fixed black ceramic bezel. Blue dial with luminous silver-tone hands and index hour markers. Minute markers. Tachymeter markings around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Audemars Piguet calibre 3126 / 3840 automatic movement with a 50-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Transparent case back. Case size: 44 mm. Case thickness: 14.45 mm. Octagon case shape. Tang clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, tachymeter, date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Item Variations: 26401PO OO A018CR 01, 26401PO-OO-A018CR-01, 26401POOOA018CR01. Audemars Piguet Royal Oak Offshore Blue Alligator Leather Mens Watch 26401PO.OO.A018CR.01.