Today, Thursday September 14th, 2017, Zenith is writing its future and starting a new chapter in the history of the Swiss watch industry. Following the rich horological prowess that gave birth to the Zenith El Primero, the first ever automatic chronograph introduced in 1969 —capable of measuring tenths of a second, the unit of time naturally stemming from a 5 Hz oscillation frequency—, Zenith is now renewing ties with innovation and fundamental research by presenting Defy Lab.