Vacheron Constantin 485

Caliber 485 is a manual-winding triple calendar movement manufactured by Vacheron Constantin. Introduced in 1955, it is based on the Jaeger-LeCoultre 450 and belongs to the 4xx caliber family. The movement displays day, date, and month through apertures on the dial. It was discontinued at some point after its launch. Notable Vacheron Constantin watches featuring this caliber include the reference 6692 and the 6677 "Royaume Uni."