👉 Stopwatches are a type of digital watch that displays time using a rotating bezel. They were first introduced in 1874 and have since become an essential part of many people's daily lives, especially when it comes to keeping track of schedules or other important events. Stopwatches use a mechanism called the "rotation speed" (which is determined by the number of revolutions made by the rotating bezel) to display time, making them incredibly accurate and reliable in terms of accuracy.