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Audemars Piguet

Ref. 25829TR

Royal Oak Quantième Perpetuel

A captivating and extremely rare tantalum and pink gold automatic openwork perpetual calendar wristwatch with box number 12 of a limited edition of 15 pieces

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In 1986 that Audemars Piguet unveiled the very first fully openworked Royal Oak Perpetual Calendar, the ref. 25636. Powered by the calibre 2120/2800, it combined openworked aesthetic, intricate engraving, and the technical mastery of the perpetual calendar, all while maintaining the contemporary design codes of the iconic Royal Oak.

However, the original ref. 25636 did not include a leap year indicator until the release of the upgraded ref. 25820 in 1996, which featured the improved calibre 2120/2802.

Audemars Piguet's pioneering spirit in the 1990s also led to the dramatic rise of innovative material usage in watchmaking. Credits should be given to the brand for their innovative combination distinguished by the use of tantalum with its unique grey-blue hue, which contrasts strikingly with the warm, lustrous tones of pink gold. This interplay of materials is further elevated by the openwork dial and salmon subsidiary dials creating a harmonious and visually captivating composition.

According to Audemars Piguet, the openwork Quantième Perpétuel ref. 25829 was produced in a limited production of just 15 pieces per configuration, including the present tantalum and pink gold example.
Numbered 12, the present example is offered by its original owner and is fresh tot heauction market. It is very well-preserved with original beveling presented on the case. The stainless steel clasp bears the hallmark of the renowned bracelet maker Gay Frères. An incredibly rare and highly coveted reference by discerning collectors, the watch represents the pinnacle of Audemars Piguet's innovative and traditional watchmaking prowess.

Audemars Piguet

Swiss | 1881

A specialist in the manufacture of complications since it was established in 1881, Audemars Piguet never ceases to impress with a rich history of creating bold, even audacious, timepieces underpinned by traditional watchmaking at its finest. This Le Brassus-based Swiss manufacturer is one of only two major manufacturers still owned by the founding family. Since its earliest days, AP is considered a leader in the field of minute repeaters and grande complication pocket and wristwatches. The brand is devoted to preserving the history of watchmaking in the Vallée de Joux, showcased at their superb museum in Le Brassus.


Today, the brand is best known for its Royal Oak models, a revolutionary luxury sports watch launched in 1972. Other key models include early minute repeating wristwatches, vintage chronograph wristwatches, such as the oversized reference 5020, perpetual calendar watches and the Royal Oak Offshore, first introduced in 1993.

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