
It had an instantaneous date change at midnight feature, a tachymeter, and return-to-zero pusher. It was also the first high-frequency calendar equipped chronograph and had an exceptionally thin profile of only 6.5mm which made it noticeably more slender than traditional chronographs in its time. The El Primero has made numerous innovations over the years from being a high beat, 5Hz movement that operated at an oscillation rate of 36,000 vibrations per hour, to be the first self-winding chronograph caliber. This is most likely why it got the name “El Primero” which is Spanish for “The First”. Announced at a press conference in 1969, the Zenith 3019 PCH movement as it was known, was the first to have a fully integrated self-winding rotor the making it the first-ever automatic chronograph. The El Primero wasn’t only an exceptionally precise chronograph. The company’s journey to create the El Primero, one of the most iconic chronograph movements ever made began in 1865. It's the kind of thing that films are made of. The story of the famous Zenith El Primero is a fascinating one, to say the least. This distinctive new comer is teamed with an eminently comfortable integrated steel bracelet or a textured cordura-effect rubber strap option, secured by a steel folding clasp.A legendary chronograph with a powerfully rich story and colorful history get some major upgrades. The exceptional legibility ensured by contrast effects continues on the particularly refined black or white dial bearing the signature El Primero tri-colour chronograph counters in blue, anthracite and light grey, each graduated to 60 for intuitive and readings.

The new Chronomaster Sport is the only watch to feature a 1/10thof a second display etched directly on its polished and graduated black ceramic bezel. Endowed with a 60-hour power reserve, the mechanism and its striking architecture can be admired through the sapphire display back revealing a blue column wheel and open rotor marked with the five-pointed Zenith star. It is driven by the new high-frequency El Primero 3600 calibre offering greater performance and precision than ever.

This worthy descendant of the Chronomaster lineage features a sleek, robust and beautifully proportioned steel case measuring 41 mm wide with pump-style pushers.
