The difference lies in the fact that it has been developed using the latest technologies and performance algorithms. Renamed El Primero 3600, this optimised calibre is thus endowed with the main attributes of its predecessor: a 1/10 th of a second chronograph function, along with integrated construction incorporating a lateral clutch, column wheel and ballbearing-mounted central rotor. Zenith El Primero Chronomaster 2 Modern heritage As an added bonus, it was to provide the option of integrating several functions and displays as well as ensuring enhanced user-friendliness – all the while complying with the absolute necessity of preserving the integrity and identity of the original El Primero. The strict specifications stipulated modularity, optimised industrial production, assembly and adjustment, the addition of a stop-seconds device and autonomy increased to a full 60 hours. In this spirit, the Manufacture’s engineers have redesigned the world’s most accurate automatic chronograph movement, offering a modernised version that is faithful to the architecture and proven performance of the original. Zenith El Primero Chronomaster 2 Faithful optimisationĪt Zenith, celebrating the mythical El Primero – a high-frequency star born in 1969 – is about showing respect for the past, taking root in the present and looking resolutely towards future horizons. Alongside the original Zenith El Primero, it will gradually be introduced on other models in the range and equipped with various functions.

Also beating at the high frequency of 36,000 vibrations per hour, it measures and displays tenths of a second. Reinterpreted to ensure greater modularity, the El Primero 3600 calibre has been designed using the latest technologies, while preserving the DNA of the original movement. The new El Primero lineage is inaugurated with series of 250 titanium models featuring an original ceramic bezel and skeleton dial – the Zenith El Primero Chronomaster 2. An opportunity to unveil this cult movement in its modernised version, fitted in the emblematic Chronomaster.

Zenith El Primero Chronomaster 2 Reading Time: 5 minutesĮl Primero is celebrating its 50 th anniversary.

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