Entirely dressed in blue. the new Royal Oak Perpetual Calendar in 41 mm presents for the first time a case and bracelet fully crafted in blue ceramic. The matching blue Grande Tapisserie dial and subdials further bestow the timepiece with an air of starlit sky. Blue ceramic case. glareproofed sapphire crystal and caseback. screw-locked crown. Blue dial with “Grande Tapisserie�?pattern. blue counters. white gold applied hour-markers and Royal Oak hands with luminescent coating. blue inner bezel. Blue ceramic bracelet with AP folding clasp in blackened polished steel.