Royal Oak Perpetual Calendar Ceramic 26579CE Black Dial

Size: 41mm x 11.5mm
Movement: Modified 21J automatic movement at 21600vph with platinum plated rotor
Functions: Hours, minutes, month, moonphase, day and date display
Case: Ceramic case
Crystal: Scratch-proof sapphire crystal with colorless anti-reflection coating
Dial: Black textured dial with custom moonphase indicator
Bezel: Ceramic bezel
Strap: Ceramic bracelet
Clasp: Double deployant buckle
Water resistance: <20 Meters