The Chronomaster Sport is the culmination of over 50 years of mastery of the sporty chronograph and the automatic chronograph calibre. Equipped with the latest generation of the El Primero chronograph calibre, it measures and displays elapsed time with a precision of 1/10th of a second in a design that is contemporary yet unmistakably Zenith.
El Primero 3600
Frequency 36,000 VpH (5 Hz), Power Reserve: approx. 60hours