Vacheron Constantin Unveils Ultra-Thin Calibre 2550 Movement at Watches & Wonders 2026

Vacheron Constantin introduced its thinnest Overseas model yet at Watches & Wonders 2026 in Geneva. The new Calibre 2550 movement, measuring just 2.4 millimeters thick, represents seven years of development and delivers an 80-hour power reserve. This engineering achievement features a bidirectional micro-rotor crafted from 950 platinum, a suspended double barrel system, and a compact single-level gear train. The movement makes its debut in the Overseas Self-Winding Ultra-Thin watch, which measures 7.35 millimeters thick and is crafted entirely in 950 platinum—a first for the Overseas collection. The timepiece features a salmon-lacquered dial with sunburst satin finishing and comes with interchangeable straps including platinum bracelet, rubber, and alligator options. Limited to 255 individually numbered pieces, this release continues Vacheron Constantin's legacy of ultra-thin watchmaking that dates back to mid-20th century innovations like the Calibre 1003 and 1120. The brand's approach emphasizes technical mastery and aesthetic restraint, positioning slimness as a platform for innovation rather than compromise. The event showcases how heritage maisons can deliver radical statements through precision engineering.