Vacheron Constantin caliber 1326 is a self-winding movement with a power reserve of 48 hours. It consists of 142 parts including 25 jewels, and measures 26.2mm across at a height of 4.3mm. It was introduced in 2018. It is based on the Cartier 1904 architecture. It is produced by Richemont's Manufacture Horlogère ValFleurier and finished, assembled, and regulated by Vacheron Constantin.