About the Audemars Piguet 15553BA.OO.1356BA.04
The Audemars Piguet Royal Oak Selfwinding 15553BA.OO.1356BA.04 debuted in 2026 and applies the combination of an 18-carat yellow-gold case and a natural malachite stone dial to the 37 mm Royal Oak format.
The watch is housed in a 37 mm case crafted from 18-carat yellow gold with a thickness of 9.3 mm. Glareproofed sapphire crystals are fitted on both the dial side and the caseback. Water resistance is rated to 50 metres. The integrated bracelet is executed in matching yellow gold and secured by a three-blade folding clasp.
The dial is produced from natural malachite, displaying banded stone patterns that vary from one example to another. It is fitted with 18-carat yellow-gold hands and hour markers filled with luminescent material and framed by a yellow-gold-toned inner bezel. The display is limited to hours, minutes, and central seconds.
Powering the watch is the selfwinding Calibre 5909. The movement operates at a frequency of 28,800 vibrations per hour (4 Hz), consists of 174 components, contains 29 jewels, measures 26.2 mm in diameter with a thickness of 3.9 mm, and provides a power reserve of approximately 60 hours.