For Zenith, the leading position in the field of high-frequency frequency timing is unquestionable. As early as the 1960s, Zenith pioneered the high-frequency chronograph with the world's first integrated automatic chronograph movement, El Primero. Today, El Primero is still a very rare high-frequency movement. However, Zenith is a company that uses R&D technology and the limits of inquiry as the core of the spirit. It is still in the legendary history, and it is still insisting on thinking. How can the high-vibration legend break through the 21st century?
In 2017, after unremitting research and experimentation, Zenith finally successfully launched the DEFY El Primero 21, equipped with the El Primero 9004 self-winding movement, with a timing accuracy of one hundredth of a second and a vibration frequency of up to 360,000 vibrations. /hour. Of course, there have been some brands that have introduced a concept watch with similar speed, but no one has produced such a high-frequency chronograph movement like Zenith. To this day, only DEFY El Primero 21 is a 1/100 second chronograph that can be mass-produced and can be bought for everyday wear. What's more worth mentioning is that in addition to the eye-catching function of high-frequency timing, El Primero 21's travel accuracy is also outstanding, and it has been certified by the Swiss Official Observatory COSC with a daily error of no more than -4/+6 seconds.
Table friends who often come into contact with the chronograph must know that for chronographs, in addition to accurate timing, precise travel time is another big problem. Because the two timings and the time when the two systems share an escape wheel, the timing function is activated, which will inevitably affect the speed. Nowadays, some brands with self-produced movements solve the problem of the chronograph. Improvements, such as increasing the movement of the movement, and so on. At the time of Zenith, the El Primero 21 watch was equipped with a double escapement system. The timing and travel time did not interfere with each other, which fundamentally solved this problem. The escape frequency is 36,000/hour (5 Hz), the power reserve is 50 hours, which is responsible for stable and precise travel time, while the timing escapement reaches 10 times 360,000/hour (50 Hz). Timed operation lasting 50 minutes.
