Hacking secondsHacking Seconds Hacking seconds is a feature found on some mechanical watch movements which allows the wearer to stop the second hand by pulling out the crown. This allows the wearer to set the watch to a precise time. [Learn More] is a feature found on some mechanical watch movements which allows the wearer to stop the second hand by pulling out the crownCrown The knob on the outside of the watch that you typically use to either wind the mainspring or set the time [Learn More]. This allows the wearer to set the watch to a precise time.