Classique Calendrier 7337 is a luxury wristwatch from Breguet.

The watch is adorned with all the various decorative processes of the brand. The eccentric dial is decorated with a fine Clous de Paris guilloché created by the manufacture's artisans on the manual guilloché machine. The moon phase display at 12 o'clock was made particularly realistic. The dial base is decorated with a circular barleycorn pattern all the way to the bezel. The hand-hammered golden moon is surrounded by clouds that have been finely sandblasted to create a matte texture. Its sky is covered with blue lacquer and sequined stars that subtly sparkle depending on the orientation of the timepiece. Traditional Breguet hands in blued steel with openworked pomme tips indicate the hours, minutes and seconds. The large windows for the date at 2 o'clock and the day of the week at 10 o'clock ensure optimal readability.

The 39 mm diameter white or red gold case houses the Caliber 502, which is still one of Breguet's flattest movements with a height of only 2.4 mm, but was designed to deliver high performance nonetheless. Its mainspring barrel is open, so that it adds as little weight as possible while guaranteeing constant power delivery to the gear train. The small oscillating weight is off-centered and also extremely flat to allow maximum space for the movement's most important elements. The rhodium-plated automatic movement consists of 236 components. It is equipped with a silicon balance spring as well as an inverted-line lever escapement with silicon horns.

The white gold oscillating weight is hand-guilloché with a circular barleycorn motif, while the other components are angled and decorated with Geneva stripes. The movement offers a power reserve of 45 hours, and its balance oscillates at a frequency of 21,800 A/h.