====== Flyback ======
{{wst>image_cl|Chronoswiss|Timemaster Flyback}}

The **flyback** (or **retour-en-vol** in French) function is a complicated mechanism in the [[movement]] of [[chronograph]]s. It is used to reset the stopwatch hand instantly to zero during an ongoing measurement, only by one press of a [[pusher]]. After releasing the pusher a new measurement immediately starts.

The usual sequence of "stop", "zero reset" and "start" steps are combined into a single one. (See also [[Mono-Rattrapante]].)

This handy device was and is particularly favored especially by pilots to measure intermediate times quickly and without much operation effort.

Most flyback movements are [[chronograph]]s which can be stopped for reading. One unusual application was the [[Jaeger-LeCoultre Reverso Memory]], where [[JLC 862|Cal. 862]] featured a continuously-running 60-minute timer on the [[duoface|reverse side]] with a flyback button.


{{tag>Terms Flyback_chronograph_movements}}