Ever since 1978, when Audemars Piguet issued on the market their first watch model featuring an ultra-thin self-winding mechanism and a perpetual calendar, Jules Audemars Perpetual Calendar (ref. 26390OR.OO.D088CR.01) has continued to be the favorite of luxury item lovers. An iconic model of the Vallée de Joux based company, this watch confirms once again the house’s power to combine style and elegance with high class precision, sophistication and small sizes.
Indeed, considering the watch’s dimensions (a 9.15 mm thick case and a 4 mm tick mechanism), its stylish look and its technical features (perpetual calendar complication with moon phases and leap-year cycle indicators, bidirectional automatic winding system, self-winding mechanism, 30 meters underwater resistance) are truly surprising.
Jules Audemars Perpetual Calendar incorporates an improved version of the traditional in-house manufactured caliber 2120 that the Swiss watch makers assemble manually. A floating barrel sets into motion the whole mechanism and its movements are in full harmony with the open-worked rotor with 21-carat gold segment. The movement is equipped with a rotor mounted on 4 jewels so that an optimal winding is ensured. One can get a glace over the timepiece’s movement and admire the exceptional quality of its 355 manually finished and assembled pieces through the sapphire crystal back case.
This model’s classical and simple appearance suggests the same idea of perfection and precision. The four sub-dials (month indicator at 12 o’clock, day of the month display at 3 o’clock, moon phase indicator at 6 o’clock and day of the week display at 9 o’clock) are symmetrically displayed on the white dial and framed by the rose gold bezel. In order to enhance the look’s simplicity, the figures are not displayed on the dial. They are replaced by 12 golden lines elegantly brazing the dial and towards which the two delicate handles (hours and minutes) point.