hand A sweep seconds hand is a type of watch hand that moves in a smooth, continuous motion around the watch dial. It is used to measure elapsed time and is also known as a second hand. The sweep seconds hand is long and thin, and it slowly and continuously moves around the dial in a counter-clockwise direction. The length of the sweep seconds hand can vary from watch to watch, and its movement is often smooth and silent. Its purpose is to keep track of elapsed time, and it is often accompanied by other hands, such as a minutes and hours hand.
