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Audemars Piguet  - A new historical record

Audemars Piguet A new historical record

The new Royal Oak Selfwinding Perpetual Calendar Ultra-Thin is the world’s thinnest perpetual calendar.

Audemars Piguet had already made its mark at the SIHH 2018 with its prototype RD#2 Royal Oak Selfwinding Perpetual Calendar Ultra-Thin in platinum, the slimmest selfwinding perpetual calendar on the market and a spectacular result achieved by five years of research and development. Since last year, the prototype has been transformed into a production model, an archetype of exceptional know-how. With its in-house 2.89mm-thick caliber and 6.3mm thick case, the Royal Oak Selfwinding Perpetual Calendar Ultra-Thin holds the world record for thinness. This record ultra-thinness is embedded in the DNA of the oldest Manufacture still in the hands of the founding families. As all watch enthusiasts are aware, the miniaturization of movements is synonymous with technical prowess when it is accompanied by the reliability inherent in high-end watches.

Reducing the number of components and their size requires a mastery of performance and an innovative mindset that reflect the brand’s philosophy, “to break the rules, you must first master them”. With their complexity that ranks them in the closed circle of Grandes Complications, perpetual calendar watches – and Royal Oak models as a whole – are generally not slim enough to slip smoothly under a shirt cuff, but that is now possible with this distillation of aesthetic and technical ingenuity. The watchmakers and engineers of the Manufacture have integrated movement development, design and ergonomics into the conception of this new timepiece to boost its efficiency, robustness and reliability. To achieve an ultra-thin movement of 2.89mm in thickness, the perpetual calendar functions, normally arranged on three levels have been merged into one single layer. This was achieved by optimizing the geometry of each component (256 in all) by means of two innovations, with the end of month cam being integrated into the date wheel and the month cam coupled with the month wheel.

Retour aux records historiques

Royal Oak Selfwinding Perpetual Calendar Ultra-Thin © Audemars Piguet

Appearances are not deceptive !

The visible part of this intrinsic prowess focuses mainly on an ultra-thin profile, a clear view of the finely sculpted and decorated oscillating weight, the meticulously finished caliber, as well as the new dial layout. The day, date and month counters have been redesigned in a more generous size, as has the day/night indication at 8 o’clock, harmoniously arranged opposite the leap year at 4 o’clock. Above all, the dial’s traditional Grande Tapisserie motif has been replaced by a blue satin-finished surface enhancing legibility while reinforcing the modern character of the piece. Evolving from the initial 950 platinum prototype, the case combines titanium (case and bracelet) and 950 platinum (bezel and bracelet links). The two noble materials create subtle contrasts, further enhanced by the alternating satin-brushed and polished finishes created by the artisans of the Manufacture.

A new historical record

Royal Oak Selfwinding Perpetual Calendar Ultra-Thin © Audemars Piguet

A constantly enriched heritage

Audemars Piguet has long since proven its skills in crafting ultra-thin pocket watches and wristwatches, reaching new technical milestones at great speed and achieving major accomplishments at the start of the 20th century. One of these milestones included the 1921 pocket watch equipped with a movement that still holds the world record for slimness : 1.32mm ! In 1938 the Manufacture transposed this record into a wristwatch with a 1.64mmthick caliber, then in 1967 with a 2.45mm- thick selfwinding movement. But let us return to the perpetual calendar, the intricacies of which Audemars Piguet has long since mastered. Having become the first brand to display the leap year on a wristwatch in 1955 (Ref 5516), it also set a world slimness record for a perpetual calendar in 1978 with a 3.95mm-thick caliber, (Ref 5548). Technological advances have always accompanied the evolu- tion of the Audemars Piguet collections, whose watchmakers have benefited from the skills of engineers, designers and programmers. From the 1980s, the Manufacture was one of the pioneers in using CAD (computer-aided design) or digital testing. The Royal Oak Selfwinding Perpetual Calendar Ultra-Thin provides a chance to evolve with time and to own the very best that modern timekeeping has to offer.


Lecture 2 Comment(s)

21 August 2019
RamdAni Bylal
Je suis tombé amoureux (je vais me la prendre de suite.)
21 August 2019
Francoise Perrat
Magnifique bijou.Bravo

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Audemars Piguet is one of the few independent family-owned watch businesses and has been based in Le Brassus, in Switzerland's Vallée de Joux region, at the heart of the fine watchmaking industry, ever since the company was first established in 1875.

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