Audemars Piguet 1000

The caliber 1000 is an in-house automatic movement by Audemars Piguet, measuring 34.3 mm in diameter and containing 90 jewels. It operates at a frequency of 21,600 vibrations per hour, offers a power reserve of 64 hours, and features an automatic bidirectional winding system with a column wheel. This movement combines a perpetual calendar with date, day, month, and moon phase indications alongside a flyback chronograph with split seconds, a minute repeater, and a tourbillon, and it powers the 26398 model.