Audemars Piguet Royal Oak Blue Dial Mens Watch Ref 26579CB.OO

White ceramic case. White ceramic bracelet. Eight screw-in lugs. Screwed solid bezel cap. Fixed white ceramic bezel with eight screws. Blue dial featuring silver-tone stick-index hour markers and luminous paint on hands and some indices. Analog dial type displaying hours, minutes, seconds. Weekday indicators at the outer rim of the case. Luminous coating for hour markers and hands (night visible). Perpetual calendar function including date display and leap year adjustment. Moon phase sub-dial complication. Additional sub-dials show day of week, month. Calibre 5134 automatic movement (based on Audemars Piguet 2120 calibre), with approximately 38 jewels comprising 374 parts. Bitting rate is 19,800 vph. Power reserve lasts about 40 hours. Scratch resistant sapphire crystal glass. Screw-down winding/crown set in ceramic. Transparent screw-in exhibition case back. Octagonal bezel shape and overall case form. Case width (diameter) measures 41 mm. Case thickness is approximately 9.5 mm. Clasp closure system uses a butterfly mechanism. Water resistance depth of up to 200 meters / 660 feet, suitable for swimming but not scuba diving.