The Jules Audemars collection pays tribute to one of the founders of Audemars Piguet, Jules Audemars. The collections simplicity and elegance are well represented in the newest 2011 edition to the line, the Jules Audemars Moon-Phase Calendar watch reference # 26385OR.OO.A088CR.01. This new timepiece has an elegant 39 millimeter x 8.8 millimeter thick round case crafted from 18 carat pink gold with a smooth polished bezel. The silver-toned dial is decorated with applied pink gold hour-markers and pink gold hour and minute hands. Pink gold hands also indicate the day sub-dial located at the 3 o'clock position and the day of-the-week sub-dial at 9 o'clock. The beautiful moon-phase window is located above the 6 o'clock.

The Audemars Piguet Jules Audemars Moon-Phase Calendar timepiece is powered by the self-winding caliber 2324/2825 movement. The movement measures 26.60 millimeters (11_ lignes) in diameter, with a casing diameter of 26 millimeter by 4.60 millimeter thick. The movement contains 45 jewels and 215 parts and boasts a power reserve of up to 40 hours. All parts are finished and decorated by hand, the main-plate is beveled and circular-grained and the bridges are adorned with Côtes de Genève motif.

The watch is secured to the wearers wrist by a hand-sewn brown crocodile leather with large square scales and a pin buckle crafted in 18 carat pink gold.