Description
A Chronograph watch is a display watch with a timer (stopwatch) function. Chronograph watches feature a main second hand that you can start, stop and return to zero by pressing the buttons (stems) on the side of the watch, allowing you to use it as a timer.
On chronograph watches the real-time seconds are shown on a sub-dial on the face of watch. The hour and minute hands show the real-time as regular display watches.
During timing, chronograph watches use the main second hand to time seconds and a minute sub-dial to track minutes passed since the start. More complex chronographs can track hours passed as well by using an additional hour sub-dial.
