ROYAL OAK PERPETUAL CALENDAR, 41 mm

CASEBlack ceramic case, glareproofed sapphire crystal and caseback.
CASE SIZE41 mm
WATER RESISTANCE20 m
CASE THICKNESS9.5 mm
DIALSlate grey dial with “Grande Tapisserie” pattern, black counters, white gold applied hour-markers and Royal Oak hands with luminescent coating, black inner bezel.
BRACELETBlack ceramic bracelet with titanium AP folding clasp.
TOTAL DIAMETER29 mm (12¾ Lignes)
FREQUENCY OF BALANCE WHEEL2.75 Hz (19,800 vph)
NUMBER OF JEWELS38
CALIBREManufacture Calibre 5134
TYPE OF BALANCE-SPRING STUD-HOLDERMobile stud-holder.
POWER RESERVE40 hours
BALANCE-SPRING TYPEBalance with variable inertia blocks.
NUMBER OF PARTS374
FUNCTIONSPerpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes.