This year, Audemars Piguet once again went above and beyond and unveiled its second significant concept watch: the Royal Oak RD#2 perpetual calendar ultra-thin concept watch. Aptly named, the new self-winding caliber 5133 took five years to develop and combines two important complications. In addition to measuring just 2.89mm in thickness, the 256-part caliber boasts a perpetual calendar with day, date, astronomical moon phase, month, leap year and day/ night indications, as well as hours and minutes. The challenging part of its design was re-engineering the three-level movement into a single level to achieve thinness, while at the same time rearranging the functions to ensure e!ciency and beauty. The patented caliber has a 2.89mm central rotor and 40 hours of power reserve. At 41mm in diameter, the watch, when cased, measures only 6.30mm in thickness. Although not in production and unavailable for purchase, it is the thinnest self-winding perpetual calendar created.
Details
| Price range | Price on request |
| Gender | Male |
| Case | Tonneau |
| Complications | Leap Year Moon Phase Calendar Date Hours Day/Week Indicator Minutes Day/Night Indicator |
| Water resistance | 20m |
| Movement | Automatic |
| Power reserve range (hours) | 24 - 48 |
| Power reserve | 40 hours |
| Case size | Large (>39mm) |
| Case diameter (mm) | 41 |
| Case height (mm) | 6 |
| Case back | Open |
| Case colour | Platinum |
| Case material | Platinum |
| Dial colour | Blue |
| Luminosity | Luminosity |
| Where to buy | Audemars Piguet in New York |
| Caliber | 5133 |
| ReferenceNumber | 26586PT.OO.1240PT.01 |
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Born in the abundantly natural landscape of Vallée de Joux, Geneva, Audemars Piguet presents timepieces that are raw in their alignment with nature. Utilizing the earth's space for their ateliers, the farmers occupying Vallée de Joux in the 18th century tirelessly practiced horological craftsmanship to produce some of the most complicated mechanisms ever made. Nurtured through these natural resources, the iron ore found within the ice and rocks of this region is what sustained the evolution of its timepieces and rise to renown.Following the footsteps of its founders, Audemars Piguet continues to practice forward-thinking. Launched in 2019, its Code 11.59 collection ceaselessly impresses through its contemporary, double-curved sapphire crystal face and the shapeshifting illusion of its circular and octagonal blend. The most famous of Audemars Piguet collections, however, is the Royal Oak of which the Flying Tourbillon Extra-thin RD#3 has taken the spotlight. This self-winding watch measures 8.1mm in thickness and features a bidirectional central oscillating weight that celebrates the line's 50th anniversary.
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