
◆ Vacheron Constantin5 min
Vacheron Constantin Overseas Ultra-Thin Calibre 2550: Seven Years to Build the World's Most Sophisticated 2.4mm Movement
<37mm
Vacheron Constantin unveils the Calibre 2550 at Watches & Wonders 2026 — a 2.4mm automatic movement with a platinum micro-rotor, double barrel, and 80-hour power reserve that took seven years to engineer. Debuting in a 7.35mm platinum Overseas case, it is the most technically significant new in-house ultra-thin automatic in a generation.
April 15, 2026