Vacheron Constantin 1019

Caliber 1019 is an automatic movement manufactured by Vacheron Constantin between 1956 and 1959. It features a bi-directional 360° rotor, 21 jewels, and a frequency of 18,800 vph, with center-seconds displayed on the dial. The movement was sourced externally as an ébauche rather than produced in-house, reflecting common industry practice for Vacheron Constantin during that period.