The Audemars Piguet Royal Oak Perpetual Calendar in black ceramic - Only Watch Unique Piece - evokes the last moments of light cast by the sun as darkness descends on the evening sky, reflected by the ‘skylight’ blue Grande Tapisserie dial, polished counters in solid grey gold and orange-tinted photo realistic moon.

Juxtaposed against the entirely hand-finished black ceramic Royal Oak case, bezel and bracelet, the transition from the blue, orange and silver dusk to the pitch black of night is a powerful combination.

In addition to the unique dial, the Only Watch Unique Piece is the first black ceramic perpetual calendar wristwatch to feature a black ceramic caseback with sapphire display back revealing a unique hand-finished black oscillating mass.