Keeping the same design, the new Vacheron Constantin Traditionnelle Chronograph Perpetual Calendar in platinum has nonetheless been substantially improved now that it has the calibre 1142 QP inside. First used on the retro Cornes de Vache chronograph, the calibre 1142 is a variation of the calibre 1141, a movement based on the Lemania 2310 that Vacheron Constantin […]
