Vacheron Constantin Traditionnelle Perpetual Calendar Openworked

Introduced in 2007, the Vacheron Constantin Traditionnelle Perpetual Calendar Openworked (Ref. 43172/000P-9236) exemplifies the brand's mastery in combining intricate complications with exceptional artistry. The 39mm platinum case, with a thickness of 8. 82mm, houses a meticulously skeletonized dial that offers a captivating view of the movement's architecture. A transparent sapphire dial, enhanced by a silvered ring integrating the hour markers and minute track, ensures both transparency and legibility. At its heart lies the self-winding caliber 1120 QP SQ, a movement renowned for its ultra-thin profile and complexity. Operating at a frequency of 19, 800 vibrations per hour, it provides a power reserve of approximately 40 hours. This caliber drives the perpetual calendar functions, including day, date, month, leap year, and moon phase indicators, all meticulously arranged for optimal readability. The movement is hand-skeletonized, showcasing Vacheron Constantin's dedication to haute horlogerie. The watch is protected by a sapphire crystal, ensuring durability and clarity, while the transparent case back allows for an appreciation of the movement's intricate finishing. With a water resistance of up to 30 meters, it combines practicality with elegance. Paired with