This steel, E-serial Audemars Piguet Royal Oak automatic, Ref 15000ST, measures approximately 33mm, with inner box and certificate dated in July 2005. This iconic watch was designed by Gerald Genta in the early 1970s, it features a beautiful steel case with the unmistakable octagonal bezel and visible structural screws which penetrate the entire case and keep the watch impermeable to water intrusion. Octagonal screw down crown and sapphire crystal. Sought after blue dial with Clous de Paris decoration, white gold luminous hour markers and hands, with date at 3 o’clock. Powered by the Audemars Piguet Caliber 2140, which is a variation of the Jaeger LeCoultre 960, with a 21K oscillating weight. The Royal Oak has an integral bracelet with folding clasp with safety release. Watch is in very good condition.