With an opening that reveals Zenith’s iconic beating heart of the El Primero 4061 automatic movement, the Chronomaster El Primero Open 42mm is home to a silicon escape-wheel and lever as well as a column-wheel chronograph. Designed in Switzerland from stainless steel, this timepiece features 282 components, 31 jewels and operates at a speed of 36,000 VpH. It also boasts a 50h power reserve, domed sapphire-crystal anti-reflective face, silver sunray-patterned dial with dual-colour counters, 10 ATM water resistance, a tachymetric scale and blue fabric strap with a steel triple-folding clasp. Functions include a central chronograph hand, 12-hour counter at 6 o’clock, 30-min counter at 3 o’clock, hour and minutes as well as small seconds at 9 o’clock - all of which are rhodium-plated and coated with SuperLuminova. This item comes with a standard 2-year international warranty from the brand.