An iconic design trait among chronograph wristwatches, the Zenith tri-color chronograph registers have been a signature feature of the brand, ever since the earliest El Primero-equipped watches from 1969.
A living legend among chronograph movements, the El Primero was introduced in 1969 as the world’s first high-frequency automatic chronograph movement. Today, its story continues in several variations of the coveted calibre.
Over 50 years of unwavering precision
Since its release in 1969, the El Primero has remained the automatic chronograph calibre par excellence. It’s high-frequency beat rate of 36’000 VpH (5 Hz) and its column-wheel mechanism ensure tried and tested reliability and precision.