Launched in 2025, the Vacheron Constantin Traditionnelle Perpetual Calendar Ultra-Thin 4300T/000G-H106 features a striking 36.5 mm case crafted from 18K white gold paired with a silver-toned opaline dial. The design elements and arrangement of the calendar pay homage to the 1983 Vacheron Constantin reference 43031. The watch houses the remarkably slender automatic calibre 1120 QP.

With a thickness of only 8.43 mm, the case showcases the distinctive stepped profile, narrow bezel, and straight lugs associated with the Traditionnelle series. A sapphire crystal back allows a glimpse of the intricate movement, while the watch boasts a water resistance of up to 30 meters. The opaline dial features three small displays for the perpetual calendar: the day is positioned at 9 o'clock, the date at 3 o'clock, and at 12 o'clock, a 48-month display including the leap-year cycle. The moon phase and age of the moon are indicated at 6 o'clock. Contrasting beautifully, the applied baton hour markers and faceted Dauphine hands are fashioned from 18K 5N pink gold.

Powering the watch is the Vacheron Constantin calibre 1120 QP, an automatic movement that measures only 4.05 mm thick, oscillating at 19,800 vibrations per hour (2.75 Hz) and offering around 40 hours of power reserve. Fitted with a light brown Mississippiensis alligator leather strap detailed with matching stitching and an 18K white-gold pin buckle, this timepiece carries the prestigious Geneva Seal certification.