Jules Audemars Equation of Time is an automatic watch that has many functions covering hour and minute, equation of time (difference between solar and mean time in minutes), sunset and sunrise times, and perpetual calendar including the moonphase. Its movement is the same as Metropolis Perpetual Calendar using the Audemars Piguet caliber 2120/2804.
They have a rotor with 21K gold segment and the plates are decorated with Cotes de Geneve and beveled.
The case comes in 18K yellow-gold with a silver dial, pink-gold with black dial, and white-gold with dark gray dial. Its diameter of the case is 39mm with a thickness of 11.7mm.
The equation of time is measured base on the engraved digits and marks on the bezel. It uses curved sapphire glass and the caseback also has sapphire glass for the transparent view of its movement.
The sub-counters within decorated with metal (same as its case) rims around its circumference. There are triangular metal markers every 5 minutes progression.
Its minute track is printed on the dial also with numbering every 5 minutes up to 60. For its central hands, they used skeletonized burnished Alpha hands to make a subtle difference.
Its sub-dials are the four year cycle between 1 and 2, the moonphase and month at 12, the sunrise time at 9, and its day and date at 6. The equation of time calculation is base on central hand with a sun at the tip.
The strap uses crocodile leather and it also has the interesting fold-over clasp shaped to Audemars Piguet’s logo, AP.
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