As a follow up to the Royal Oak Perpetual Calendars Black Ceramic that was introduced by Audemars Piguet in 2017, the Le Brassus manufacture this week debuted a new open-worked version, which is otherwise the same as its predecessor.

The Royal Oak Perpetual Calendar Openworked Black Ceramic is presented in a sleek 41 mm x 9.9 mm black ceramic case which features intricate satin-brushing on the entire case and bracelet, with the exception of the beveled edges of the case, bezel, caseback (black titanium), and bracelet, which have been polished.

Audemars Piguet Royal Oak Perpetual Calendar Openworked Black Ceramic
Audemars Piguet Royal Oak Perpetual Calendar Openworked Black Ceramic

Underneath a sapphire crystal dial is in-house movement caliber 5135, which is a skeletonized version of caliber 5134, that powers the aforementioned Royal Oak Perpetual Calendar Black Ceramic from 2017. The movement is wound by a skeletonized rose gold oscillating weight, beats at a frequency of 2.75Hz, has 374 components, 38 jewels, and a 40-hour power reserve.

Audemars Piguet Royal Oak Perpetual Calendar Openworked Black Ceramic caseback
Royal Oak Perpetual Calendar Openworked Black Ceramic caseback

The watch functions include hours, minutes, seconds, and a perpetual calendar (date, day, week, month, leap year, and moon phase indicators). Baton-shaped hands indicate hours, minutes, and seconds like the previous model but this time they’re in rose gold, as are the applied indices, and subdial surrounds.

Retail is $130,000.

SIHH 2017: Royal Oak Perpetual Calendar in Ceramic

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