A flybackFlyback A flyback function on a chronograph watch, allows the user to reset the chronograph back to zero and start timing again with a single button press (no need to first stop the watch). [Learn More] function on a chronographChronograph A chronograph complication is a feature in a watch that allows the wearer to measure elapsed time in addition to telling the time. It works by having a separate set of gears and levers, called the chronograph mechanism, which is activated by pressing a button or a pusher. The chronograph mechanism starts and stops the chronograph's second hand, which is usually located on the watch's dial, separate from the regular watch hands. The elapsed time is usually displayed on a sub-dial or a register on the watch's dial. [Learn More] watch, allows the user to reset the chronograph back to zero and start timing again with a single button press (no need to first stop the watch).