Zenith Chronomaster Sport Mens Watch 03.3100.3600/21.M3100The Zenith Chronomaster Sport is the latest iteration of the legendary chronograph, a model which has continued to evolve for over 50 years. The case boasts 100m water resistance and is made from stainless steel and ceramic. The movement powering the Chronomaster Sport is the latest incarnation of the iconic El Primero family, the calibre 3600. This movement is automatic, features a 60-hour power reserve, runs smoothly at 36,000 vibrations per hour and is one of few chronographs that is capable of measuring 1/10th of a second increments. Zenith are a watchmaker world renowned for their technical expertise, and the Chronomaster Sport is a perfect example of why.