Frederique Constant FC-760 Flyback Chronograph: About the Movement.
The conventional flyback mechanism is based on a set of several column wheels that act as a system of clutches. The FC-760 caliber that operates the Flyback Chronograph Manufacture dispenses with this complexity, replacing the standard column wheel with a star-shaped wheel. This results in a thinner movement with fewer parts and operations. The FC-760 caliber from Frederique Constant is simpler, smoother and more reliable.
The flyback allows a chronograph to restart from zero with a single button-push — that is, instead of the three pushes (to stop, return, and start) required to perform the same task on a regular chronograph. That might not sound like a big difference or worth the significant mechanical complication a flyback feature adds to a chronograph movement, but imagine you’re a pilot trying to time different legs of a flight while navigating — you need the ability to instantly begin a new timing interval without stopping. Hence the utility of the flyback chronograph in the cockpit.
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