Audemars Piguet Royal Oak series ultra-thin self-winding perpetual calendar watch breaks the record of the world’s thinnest perpetual calendar watch, and the relationship between Audemars Piguet and perpetual calendar watch is furthermore than that. As early as 1955, Audemars Piguet took the lead in making the world’s first perpetual calendar watch series with leap year display.
This record-breaking Royal Oak ultra-thin perpetual calendar watch is inspired by the 950 platinum RD # 2 prototype that was unveiled at the 2018 Geneva International Haute Horlogerie Show (SIHH), combining titanium and 950 platinum, it gives the wearer feeling of terribly light-weight and comfortable.
All sub-discs including date display, month display, leap year display, and moon phase are arranged on the dial in turn. The details of the dark blue dial are different from the past, and there is no iconic checkered design. The smooth disc surface is more suitable for complex sub-disc combinations.
The dial of the watch is no longer decorated with the blue “GrandeTapisserie” large checkered pattern but is replaced by a blue satin face, which enhances legibility and the delicate beauty of the watch.
In order to achieve an ultra-thin movement with a thickness of only 2.89 mm, Audemars Piguet redesigned the usual three-layer structure of the perpetual calendar movement and integrated it into a single-layer structure. This also developed two patented innovative designs: the end-of-month calendar cam was incorporated into the date wheel, and the month cam was incorporated into the month wheel. The geometric shape of each component has also been optimized from scratch, reducing the time for adjustment and assembly.
Like the movement, the case, bracelet, and dial are carefully decorated by the skilled hands of a craftsman. Alternating polishing and the brushed satin finish on the case, bracelet and bezel enhance the contrasting beauty of the two materials.
The redesigned movement is housed in an elegant ultra-thin case, allowing the watch to fit perfectly under the sleeves of a shirt. The details of the bracelet are also polished in various ways.
The thickness of the watch’s movement is only 2.89 mm. Through the sapphire crystal glass of the see-through case back, we can see more details about this watch caliber. This movement is equipped with a perpetual calendar, month, date, power reserve display, moon phase, and other functions and provides the reserve of 40 hours.
Summary: Today, this AP Royal Oak ultra-thin perpetual calendar watch is the world’s thinnest self-winding perpetual calendar watch, which marks the turning point of Audemars Piguet, paving the way for a new generation of complex-function watches, balanced combining sophisticated aesthetics, optimized ergonomics, sophisticated technology, ancestral craftsmanship, and modern lifestyle.