Vacheron Constantin caliber 2160/1
Caliber 2160 is the first self-winding movement developed by Vacheron Constantin. In addition to the elegance of its openworked carriage shaped like a Maltese cross, the emblem of the Manufacture, Caliber 2160 is distinguished by its incredible slimness: this ultra-thin 188-part movement endowed with an approximately 80-hour power reserve measures just 5.65 mm thick. Its relatively sedate frequency (2.5 Hz), along with its 22K gold peripheral oscillating weight, provide a chance to admire the steady beating of its mechanism and the exceptional level of traditional finishing visible through the sapphire crystal caseback. The bar of the tourbillon carriage is entirely hand-bevelled, a craftsmanship operation that takes almost 12 hours for this component alone.