Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic Black Dial Black SubDials Black Ceramic Bezel

<span data-mce-fragment="1">Royal Oak Perpetual Calendar 41mm Black Ceramic</span><br data-mce-fragment="1"><br data-mce-fragment="1"><span data-mce-fragment="1">41 mm case size. Black ceramic case. glare-proofed sapphire crystal. and case back. Case thickness 9.5mm. Slate grey dial with “Grande Tapisserie�?pattern. black counters. white gold applied hour-markers and Royal Oak hands with luminescent coating. black inner bezel. Case thickness; 9.5 mm. Dial; Slate grey dial with “Grande Tapisserie�?pattern. black counters. white gold applied hour-markers and Royal Oak hands with luminescent coating. black inner bezel. Black ceramic bracelet with titanium AP folding clasp. Water-resistance 20 m. Total diameter 29 mm (12¾ Lignes). Frequency of wheel balance 2.75 Hz (19.800 vph) Number of jewels; 38. Manufacture Calibre 5134. Mobile stud-holder. Power reserve; 40 hours. Balance-spring type; Balance with variable inertia blocks. Number of parts; 374. Function; Perpetual calendar with week indication. day. date. astronomical moon. month. leap year. hours. and minutes. The oscillating weight is guided by a peripheral ring rolling on four ruby runners. which reduces friction and wear to the minimum possible. Moon phase indicator. laser micro-structured. laid on aventurine. Moon phase astronomical indicator requiring correction every 122 years and 108.</span><br data-mce-fragment="1">