ROYAL OAK SELFWINDING CHRONOGRAPH, 41 mm

CASE18-carat yellow gold case, glareproofed sapphire crystal, screw-locked crown.
CASE SIZE41 mm
WATER RESISTANCE50 m
CASE THICKNESS11 mm
DIALBlue dial with “Grande Tapisserie” pattern, yellow gold-toned counters, yellow gold applied hour-markers and Royal Oak hands with luminescent coating.
BRACELET18-carat yellow gold bracelet with AP folding clasp. Additional blue alligator strap.
TOTAL DIAMETER26.2 mm (11½ Lignes)
FREQUENCY OF BALANCE WHEEL3.00 Hz (21,600 vph)
TYPE OF OSCILLATING WEIGHTMonobloc in 18-carat gold
NUMBER OF JEWELS37
CALIBRESelfwinding Calibre 2385
TYPE OF BALANCE-SPRING STUD-HOLDERMobile stud
POWER RESERVE40 hours
BALANCE-SPRING TYPEAnnular
DIRECTION OF AUTOMATIC WINDINGUnidirectional (see recommendations underneath)
NUMBER OF PARTS304
FUNCTIONSChronograph, hours, minutes, small seconds and date.