Audemars Piguet Royal Oak Perpetual Calendar 150th Anniversary Watch Review

The Audemars Piguet Royal Oak Perpetual Calendar 150th Anniversary is the last model to feature the Calibre 5135, a movement based on a historical movement from 1978 that has been used in Audemars Piguet’s 41mm Perpetual Calendar skeleton for nearly a decade. Today, this legendary work from 1978 has come to a successful conclusion. The best Audemars Piguet Royal Oak replica watches at captainthewatch.is.

The sapphire dial offers a panoramic view of the inner workings of the skeleton movement. The inner bezel and the edges of the sub-dials present a rich blue hue that contrasts sharply with the color of the case, cleverly reinterpreting the contrasting aesthetic design of the original pocket watch. The slightly deepened blue hue harmonizes with the deep color of the 18K white gold “bathtub-shaped” hands of the same color, which are coated with a fluorescent coating to ensure that the time is clearly visible. Continuing the overall contrasting effect, the hour markers are silver-grey and have a delicate round shape, reminiscent of the brilliant-cut diamond hour markers of the original pocket watch. The functions of the perpetual calendar are displayed in white numbers and letters, and the font has also been redesigned, giving the dial an elegant and retro aesthetic.

This skeleton perpetual calendar watch has a moon phase display at 6 o'clock on the dial, interpreting the flow of time from a unique perspective. The moon phase disc is carefully decorated with images of the moon observed from the earth, and the moon phase changes in real time during continuous rotation. The lifelike moon pattern is taken from high-definition images taken by the National Aeronautics and Space Administration (NASA) of the United States, and is transferred to the disc using sapphire 1 metal spraying technology, paying tribute to the charm of the moon. The moon phase disc is precisely meshed with the transmission mechanism of the movement, and the different moon phases observed from the southern and northern hemispheres of the earth are simultaneously displayed through the window, vividly reproducing the eight different phases of the moon in a complete cycle of 29.5 days.

From the perspective of the earth, the moon will show different shapes when it revolves around the earth. The periodic changes of the moon phase can be observed all over the world, but the eight moon phases seen in the southern and northern hemispheres are presented in reverse order. The new limited edition perpetual calendar watch cleverly reproduces this astronomical phenomenon in a small space, showing the moon phases from different perspectives through two moons. The Calibre 5135 automatic winding movement can automatically identify the number of days per month and accurately display the date even in leap years.