If you're fastidious about timing, you can't get any more accurate than the new Zenith Chronomaster Sport. The chronograph is equipped with an improved El Primero 3600 calibre that can measure 1/10th of a second, complete with a display on the bezel—it claims to be the only watch to have this clear indicator. This is the latest in the 50-year evolution of the El Primero, one of the most precise chronograph movements today, and is also endowed with a 5Hz escapement and a 60-hour power reserve.
Design-wise, the Chronomaster Sport comes with a blue or white dial with tri-colour chronograph counters, a design signature of watches powered by El Primero. There is also a choice of an integrated bracelet that recalls the bracelets designed by Gay Frères, or a textured cordura-effect rubber strap.
See also: A Closer Look At Zenith’s Collectible 50 Years Of El Primero Box Set