In 1969, Zenith launched El Primero, the first ever fully integrated automatic column-wheel chronograph movement, enabling 1/10th of a second precision. Half a century later, Zenith once again defied tradition and pushed all existing boundaries, leading us into the world of 1/100th of a second accuracy. The already iconic chronograph is available in a bold mix of black and blue tones as an exclusive limited edition of 250 pieces, available solely at Zenith boutiques around the world.