We have spent more than 140 years mastering the conception, construction and production of complications. As such, our entire philosophy revolves around these rare, precious and consistently unique creations. Here you'll discover how our mastery of complications has become the ultimate display of our Savoir-Faire.
Time measurement was built upon astronomy and the observation of the sun. Over the years certain rules were adopted in order to simplify and standardize time measurement because conventional time as displayed on the dial differs from true solar time.
The equation of time function serves to indicate the discrepancy from solar time to the nearest minute. Our astronomy models displaying the equation of time, perpetual calendar, sunrise and sunset and astronomical moon-phase indications, exemplify a degree of precision unparalleled in the watch industry.
An Audemars Piguet First
1978 We unveil the first selfwinding, ultra-thin perpetual calendar wristwatch with central rotor.
The design and production of calendar-equipped watches was the cornerstone of the 1875 founding partnership between Jules Louis Audemars and Edward Auguste Piguet. Such timepieces are to this day a specialty of the company.
The perpetual calendar is truly one of Audemars Piguet's stellar complications. It can display the day, month and year while taking account of the variable lengths of months and of leap years. This means no manual correction will be required until March 1st 2100.
A cycle lasts 29 days, 12 hours, 44 minutes, 2.8 seconds.
The number of parts in the 5134 movement.
The Perpetual Calender will not require any adjusting up to year 2100.
Other Astronomy Complications
How It Works
100 Years of Accuracy
With a perpetual calendar mechanism, the month cam and leap year cycle cam take 28, 29, 30, and 31-day months into account with no need for adjustment by the user until 2100.
The pallet will travel the longest distance on February 28, advancing the month gear to March 1st.
To reproduce the leap year cycle, the perpetual calendar mechanism is equipped with a notch on the leap year cam that completes a full turn in four years.
The pallet will travel a shorter distance on April 30, advancing the month gear to May 1st.
The palette will travel the shortest distance on October 31, advancing the month gear to November 1st.