2025 Taiwan Factory Masterpiece: The Highest Market Version of Vacheron Constantin s Historic Classic. Introducing the Vacheron Constantin Moonphase Series Men s Watch Simple Yet Magnificent. Featuring the precise Swiss ETA 2824 2 movement, it includes a true calendar at the 6 o clock position and a 24 hour day/night function. With a 40mm case diameter and a 316 stainless steel case, it is equipped with scratch resistant sapphire glass and an original quality pin buckle. It boasts exceptional water resistance and is paired with Italian cowhide for a comfortable fit on the wrist. The Vacheron Constantin Traditionnelle series produced by the TW factory embodies the brand s most unique DNA, symbolizing the ultimate elegance of Vacheron Constantin. It fully reflects the purest traditions of high end watchmaking, suitable for various business occasions, combining understated sophistication with elegance.