The "Patrimony Retrograde Day/Date" stands out for its technical complexity and originality. This model features a double retrograde mechanism, with a date display that instantly jumps from the 31st to the 1st of the following month, and a day display that instantly returns from Sunday to Monday.

The case housing this remarkable complication measures 42.5mm in diameter and a mere 9.7mm in thickness. Thanks to the tireless efforts of Vacheron Constantin's skilled watchmakers, it is contained within an exceptionally slim profile. Furthermore, the ability to control all time setting with a single crown, eliminating the need for correction pushers, preserves the smooth lines of the case, echoing its historical design.

The Caliber 2460 R31R7/2 movement is composed of 276 parts, visible through the transparent sapphire crystal case back.