CaseBrown ceramic case, glareproofed sapphire crystal and brown ceramic caseback, screw-locked crown.Size41??mmThickness9.9??mmWater Resistance20??mDialSapphire dial, smoked external zones of the counters, brown applied hour-markers and Royal Oak hands with luminescent coating, brown inner bezel.BraceletBrown calfskin strap with special pink gold folding clasp.AP xCactus JackAudemars Piguet has teamed up with Cactus Jack, the brand and record label founded by American hip hop artist Travis Scott, to design a dedicated Royal Oak Perpetual Calendar limited edition.??CaseMaterialBrown ceramicWater Resistance20 mSize41 mmDialSapphire dial, smoked external zones of the counters, brown applied hour-markers and Royal Oak hands with luminescent coating, brown inner bezel.BraceletBrown calfskin strap with special pink gold folding clasp.Calibre 5135FunctionsPerpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes.Number of jewels38MechanismSelfwindingPower reserve40 hTotal diameter29 mmNumber of parts374Frequency2.75 hz 19800 vphThickness4.5 mm??