The replica Audemars Piguet Royal Oak RD#2 Perpetual Calendar ref. 26586PT.OO.1240PT.01 is still a concept watch, with pricing and availability yet to be announced. The dial is typical Royal Oak, dark blue with a chequerboard tapisserie guilloche. A casual observer would be hard pressed to distinguish between the RD#2 and an ordinary perpetual, though the differences are obvious, most prominently with the raised position of the sub-dials at three and nine.
The case is 41mm in diameter, but hefty despite being slim, due to the platinum case and bracelet. And though it's almost a quarter thinner than the ordinary Audemars Piguet Royal Oak perpetual calendar 41mm replica watch, the decrease in height is not dramatically obvious on the wrist, perhaps because the watch was already thin to start with. Despite the significant technical advances inside the watch.
The outside looks and feels very much like a classic Royal Oak, meaning it's angular, refined and sharply finished. It is a departure from the aggressively styling of AP's other concept watches, the Royal Oak Supersonnerie and Laptimer Michael Schumacher. Like the cal. 2120, the cal. 5133 also minimises the components needed on the dial-side of the movement, utilising a hanging barrel for instance.
That means the dial also serves as a main plate of sorts, helping to secure the parts in place. The automatic base of the cal. 5133 is derived from the cal. 2120, the longstanding thin movement found in the replica Audemars Piguet Royal Oak Jumbo watch. Highly regarded as a sophisticated construction that has remained in production for over 50 years, the movement was originally the Jaeger-LeCoultre cal. 920 and also supplied to Patek Philippe and Vacheron Constantin.
One of the most distinctive features taken from the cal. 2120 is the support ring for the rotor to minimise wobbling and stress on the short pivot. That also means some of the calendar mechanism is spread out, rather than stacked up, explaining the relatively large 32mm, or 14 3/4 lignes, diameter of the movement. That's quite a bit larger than the conventionally constructed and thicker AP cal. 5134 that's 29mm, or 12 3/4 lignes, wide.
Rather than a revamp of the fundamentals of the perpetual calendar, the movement's constructors slimmed and simplified each part of the movement, while laying out the calendar display in the most mechanically concise manner possible. The cal. 5133 is made up of 256 parts, compared to 374 parts in AP's cal. 5134, or the 275 in Patek Philippe's cal. 240Q.
Just 6.3mm high in the replica Audemars Piguet Royal Oak Perpetual Calendar watch case at that; perhaps slimmer in a round, knife edge case, with the movement thickness 2.89mm, the Royal Oak RD#2 is the slimmest perpetual calendar on the market by quite some margin. Historically a favourite complication of Audemars Piguet, the perpetual calendar was the centrepiece of the brand's SIHH 2018 line-up with the Royal Oak RD#2 Perpetual Calendar, now the world's thinnest. Buy Audemars Piguet Royal Oak Perpetual Calendar 25820ST.OO.0944ST.03 Replica Watch from watchescloud.
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