Audemars Piguet 2385

The Caliber 2385 is a high-end automatic column-wheel chronograph movement based on the Frédéric Piguet 1185 ébauche (first produced in 1988). It features 304 total components and an integrated chronograph with column wheel and vertical clutch configuration. The movement's lean 5.5mm profile makes it ideal for the Royal Oak Chronograph. The 18K gold monobloc rotor adds a touch of luxury. Powers the Royal Oak Chronograph 38mm and 41mm models.