Audemars Piguet Royal Oak Offshore Ruben's Barrichello II Limited Edition 44MM Titanium with Ceramic Bezel 26078IO.OO.D001VS.01 H51QK4 Grade 5 Titanium Case. Ceramic bezel and crown. Automatic movement. Black with white sub-dials. Black leather strap. CaseBack. Deployment Buckle. Functions are hours, minutes, seconds, chronograph with sweep seconds, 30 minutes and 12 hours counters, tachymeter, date. Date at 3 o'clock.38 Hours Power Reserve. Water resistant to 330 Feet.