What was the significant advantage of the Longines flyback chronograph introduced in 1936?

The Longines flyback chronograph introduced in 1936 offered the significant advantage of allowing instant resetting while in operation, which was particularly beneficial for pilots and those involved in aviation. The mechanism enabled users to reset the chronograph hands to zero and immediately restart timing without having to stop and then restart the chronograph, which was a crucial feature during critical moments when precise timing was essential, such as during flight maneuvers.

This innovation streamlined the timing process in dynamic situations, enhancing efficiency and accuracy. The need for a quick and reliable timing method in aviation contexts made this feature especially relevant and set a new standard for chronographs used in flying and other time-sensitive activities. The design contributed notably to the functionality and usability of watches in specialized fields, marking a pivotal moment in the development of chronograph technology.