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Vacheron Constantin Traditionnelle Perpetual Calendar Ultra-Thin Watch 36.5mm. A love letter to classic watchmaking.



Making a perpetual calendar watch smaller in itself carries a subtle revolutionary significance. This revolution is not presented in a ostentatious pursuit of records, but rather crafted with thoughtful, natural artistry—a quality only conceived through 270 years of watchmaking history. Vacheron Constantin's new Traditionnelle Ultra-Thin Perpetual Calendar series reduces the case diameter to 36.5mm, a compact size that exudes understated elegance.

Vacheron Constantin will soon launch three watches: an 18K 5N rose gold model, an 18K white gold model, and a diamond-set white gold model. These are the first non-jewel-set Traditionnelle watches in this case size, paying homage to the legendary Ref. 43031 launched in 1983—a watch that saved haute horlogerie during the quartz crisis.

What do you need to know about this watch?

The dial layout is a masterpiece of balance and complexity. Three subdials are symmetrically positioned at 9, 12, and 3 o'clock, displaying the day of the week, month, and date respectively; a moon phase and age display is located at 6 o'clock, all set against a deep blue background for an elegant look. The silver opal dial, like a perfect canvas, is adorned with applied baton hour markers and multifaceted dauphine hands—all components are crafted from 18K 5N rose gold, available in both rose gold and white gold models.

The rose gold model (model 4300T/000R-H107) features matching hands and markers, paired with a deep blue alligator leather strap for a harmonious color scheme. The white gold model (model 4300T/000G-H106) presents a distinctive visual effect with contrasting rose gold accents and a refreshing light brown alligator leather strap. The diamond-set model (model 4305T/000G-H135) features 76 brilliant-cut diamonds (approximately 0.96 carats) set on the bezel and lugs, with the crown and clasp also adorned with diamonds totaling approximately 1.19 carats.

These watches are only 8.43 mm thick, easily slipping under a cuff, exuding aristocratic elegance. Inside, they house the in-house 1120 QP automatic movement, a mere 4.05 mm thick, a true example of miniaturization. This movement, composed of 276 parts, coordinates the perpetual calendar complications, displaying the day of the week, date, month, leap year, moon phase, and moon age—all functions requiring no adjustment until 2100.

Through the sapphire crystal case back, you can see Geneva stripes, hand-beveling, and circular graining—all finishes certified with the Geneva Seal.

This 22K gold rotor features an openwork design in the shape of Vacheron Constantin's iconic Maltese cross—a timeless detail.

These watches represent an increasingly precious quality: a perfect blend of exquisite watchmaking craftsmanship and comfortable wear. With a 36.5mm case diameter, it fits virtually any wrist, suitable for both men and women, and offers approximately 40 hours of power reserve and 30 meters of water resistance. All watches produced in 2025 will be engraved with a 270th anniversary badge.