The Pulse Of Time: Longines’ Ultra-Chron
This article was originally published in the November/December 2022 Issue of the WatchTime print magazine.
The heart of the Longines Ultra-Chron beats 10 times per second. Both the high-frequency automatic Caliber L836.6 and the design of this dive watch are inspired by the original Longines Ultra-Chron Diver from 1968, which was the first dive watch with a high-frequency movement. Our test shows that this Swiss brand is as competent in the field of sports watches as it is in high-speed oscillators.
Apart from the legendary El Primero from Zenith and a few movements from Grand Seiko, there are hardly any serially manufactured calibers with balances that oscillate at a frequency of 5 Hz, which is equivalent to 36,000 vibrations per hour. There have been a small number of talking pieces, such as those from Audemars Piguet, Breguet, Chopard and TAG Heuer, that oscillate at a somewhat speedier pace, but not with consistency and not at affordable prices. That?s why the astonishment sparked in us by the Longines Ultra-Chron was followed by an ?aha? moment. The brand with the winged hourglass logo can proudly recall its pioneering spirit in the development of watch movements. Longines turned its attention to high-frequency oscillators quite a long time ago.
As early as 1914, Longines created the first high-frequency instrument capable of measuring time to the nearest 1/10th of a second. In 1959, the brand developed the first high-frequency movement for a wristwa...
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