The Royal Oak Perpetual Calendar "150th Anniversary" Openworked combines state-of-the-art materials with a vintage-inspired dial. Writing the latest chapter of the 5135 calibre.
After the retirement of the calibre 5134 (derived from Jaeger-LeCoultre) that bade farewell in the Royal Oak Perpetual Calendar John Mayer last year, now Audemars Piguet The curtain also falls on its skeleton version, Calibre 5135. Its latest interpretation goes on stage in the Royal Oak Perpetual Calendar "150th Anniversary" Openworked. A watch celebrating an important milestone for a House that has been one of the finest and most interesting producers of Swiss haute horlogerie for 150 years.
The basic idea was to fuse tradition with modernity as a kind of synthesis of all these years of history. And it does so starting with the inspiration for the dial of a historic pocket watch with a skeleton perpetual calendar (Ref. 25729), exhibited in the Audemars Piguet museum, which takes shape in a display made of new-generation hi-tech materials.
New-generation hi-tech materials for the Royal Oak 150th anniversary skeleton perpetual calendar
Bulk Metallic Glass: a palladium-based alloy introduced into watchmaking by Audemars Piguet.
The Royal Oak Perpetual Calendar "150th Anniversary" Openworked is a blend of the lightness of titanium and the strength of Bulk Metallic Glass (BMG). The latter is an alloy composed of more than 50% palladium, highly resistant to wear and corrosion and with an extraordinary brilliance.
Audemars Piguet had already experimented with it on a Royal Oak Jumbo made for Only Watch and then introduced into series production a couple of years later. The 41 mm diameter, 9.9 mm thick case is made of titanium, while the bezel, back frame and central links of the bracelet are made in BMG.
The sapphire dial inspired by Audemars Piguet's perpetual skeleton pocket calendar Ref. 25729
The moon phase charm of the Royal Oak Perpetual Calendar '150th Anniversary' Openworked.
The sapphire dial echoes that of the historical pocket watch model. The blue flange, in a slightly darkened hue, highlights the sophisticated skeletonisation of the movement on which the perpetual calendar displays are set.
The phases of the lunar cycle are displayed by means of a disc decorated with a photographic representation of the Moon as seen from Earth, based on a NASA photograph transferred by metallisation onto sapphire glass. Water resistance is 20 metres. Limited edition of 150 exemplary.
Priceon request.
