Wath Review: Introducing the Royal Oak Perpetual Calendar 41mm
Audemars Piguet launched a new, respected Royal Oak 41 mm diameter larger version, we reviewed here. Stay the same, the newly announced Royal Oak calendar has also been upsized to a diameter of 41 mm case.
The new collection will be available in 4 variations. Steel with a white or blue dial and pink gold with a white or blue dial.
According to the manufacture, “The enlarged size has resulted in a “Grande Tapisserie” dial design that greatly increases the overall aesthetics, balance and legibility of the perpetual calendar indications.”
The perpetual calendar features the day, date, a highly detailed astronomical moon display, month and leap year. Uniquely, the outer chapter ring displays the 52-weeks of the year along with a coordinating central hand that indicates the current week.
The new automatic caliber 5134 is based on its predecessor, calibre 2120. It has been enlarged in accordance with the updated 41mm case size, although the watchmakers in Le Brassus managed to keep the thickness down to 4.31 mm.
Beating at 2.75Hz (19,800 vph) caliber 5134 has a bi-directional automatic winding rotor that is skeletonized in pink gold (can be custom decorated upon customer’s request). It has 38 jewels, 374 total components and a 40-hour power reserve.
The movement is highly finished and visible through the sapphire crystal caseback.