The movement used is the Cal. 5134, which is an improved version of its predecessor, the Cal. 2120.

Audemars Piguet created its first perpetual calendar in 1875, and this model was released in 2015, 140 years later.

The distinctive octagonal bezel designed by the genius watch designer Gerald Genta features a deep silver-colored Grand Tapisserie dial and a perpetual calendar and moon phase in a balanced manner in the 41mm case size.