Swiss Haute Horlogerie manufacturer Audemars Piguet is happy to unveil the new iteration of its 41 mm Royal Oak Selfwinding Perpetual Calendar Ultra-Thin model. This 200-piece limited edition is the heir to the RD#2 model launched in 2019, and to the developments that the Manufacture has been pursuing for several years in terms of ultra-thin calibres.
Attired in titanium and featuring an entrancing new smoky-blue dial with three black counters, this new version combines aesthetic sophistication with a cutting-edge astronomical complication.
This new edition features titanium on the case, bracelet and bezel, while also incorporating the alternating finishes dear to Audemars Piguet. The screws and chamfers of the bezel, case and bracelet links are polished, while the other surfaces are adorned with a vertical satin-brushed finish. This aesthetic signature stems from a genuine symbiosis between the machine and the artisan’s hand: the former prepares the surfaces – those in titanium are particularly resistant – while the latter ensures all the final finishes ensuring perfect homogeneity.
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This reference introduces a new smoky-blue dial developed especially for the model. Light in the centre and black around the rim, it is decorated with a sunburst motif endowing it with luminous aesthetics facilitating read-off of the calendar indications, month and leap year at 3 o'clock, date at 6 o'clock, day and day/night indicator at 9 o'clock.
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Each of these items of information appears in a snailed black counter. The moon phase at 12 o’clock is the only indication whose design has not been modified. The dial remains punctuated by 12 luminescent applied hour-markers and two central hands, likewise luminescent.
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On the caseback side, this new Royal Oak Selfwinding Perpetual Calendar Ultra-Thin features a sapphire crystal providing a chance to admire the technical prowess embodied in Calibre 5133.
Calibre 5133 was introduced in 2017 and pushed the limits of extra-thin complications into the realm of the ultra-thin. Elegantly combining robustness and reliability, it comprises 256 parts within a space measuring just 2.9 mm thick and 32 mm in diameter. This masterpiece of miniaturisation and engineering operates at a frequency of 2.75 Hz (19,800 vph) and delivers a power reserve of at least 40 hours.
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Inside, the perpetual calendar functions usually placed on three separate levels are positioned on a single plane. This new technical feat led to the development of two patented innovations: the integration of the end-of-month cam with the date wheel and the association of the month cam with the month wheel. To further reduce thickness, the dial also acts as a bridge.
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These major advances have been achieved through a combination of CNC (Computer Numerical Control) and CAD (Computer Aided Design) technologies used by the Manufacture since the 1980s.
At its launch in👉 2018, the unique and soberly named "RD#2" became the world's thinnest selfwinding perpetual calendar. In 2019, the commercial version of this prototype was launched and named Royal Oak Selfwinding Perpetual Calendar Ultra-Thin RD#2.
Equipped with a movement measuring 2.9 mm thick (including the oscillating weight) housed in a case measuring just 6.2 mm thick, this reference is attired in a 950 titanium and platinum alloy combining state-of-the-art technology, aesthetic refinement and lightness.
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This new iteration also perpetuates the long tradition of calendar watches and ultra-thin movements at Audemars Piguet. A century ago, in 1921, the Manufacture began this two-fold quest with the thinnest pocket watch movement ever made (1.32 mm thick), followed by a similar record for a hand-wound wristwatch movement (1.64 mm in 1938) and then a selfwinding one (2.45 mm in 1967). In 1978, when the watch industry was entirely focused on the development of quartz watches, the Manufacture unveiled a selfwinding perpetual calendar wristwatch movement that was the thinnest in the world at the time of its launch (3.95 mm).
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Today the new Royal Oak Selfwinding Perpetual Calendar Ultra-Thin represents the culmination of this age-old watchmaking approach, as well as a valuable stepping-stone towards future developments.
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TECHNICAL CHARACTERISTICS
Model: Royal Oak Selfwinding Perpetual Calendar Ultra-Thin / 43 mm
Reference: 26586PT.OO.1240PT.01
MOVEMENT
Self-winding Manufacture Calibre 5133
Total diameter: 32.00mm (14 ¾ lignes)
Total thickness: 2.89mm
Number of jewels: 37
Number of parts: 256
Minimal guaranteed power reserve: 40h
Frequency of balance wheel 2.75Hz (=19,800 vibrations/hour)
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FUNCTIONS
Perpetual calendar with day, date, astronomical moon,
month, leap year, night and day indication, hours and minutes
CASE
950 platinum case
Glare-proofed sapphire crystal and caseback,
Royal Oak – RD#2 engraved on the caseback.
Water-resistant to 20m.
DIAL
Blue dial with “Grande Tapisserie” pattern, blue counters.
White gold applied hour-markers and Royal Oak hands with luminescent coating
BRACELET
950 platinum bracelet with AP folding clasp
🔰Edition: ✅ of 200 pieces
🔴 Price : incl. VAT 60'000 EUR /53 900 CHF 💰
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Press Release - 2023
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Audemars Piguet (Marketing) SA
Route de France 16 - Case postale 16
1348 Le Brassus - Switzerland
Phone : + 41 21 642 39 00
Fax : + 41 21 642 34 02
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