A watch can be defined as a personal timepiece that is kept on a person; the term is more generally used these days to refer to a wristwatch, although it originally described a pocket watch, which was the more common type of watch pre World War 1.
Watches find their origins in the spring powered clocks that were common in the 1400s, although they did not start to appear in a recognisable form until the 1600s.
Modern watches often rely on electrically powered, quartz movements to keep accurate time, and also display other information such as the date.
Watch displays come in two distinctly different types. Firstly we have the analogue display; this type of watch face will have two hands, and one will point to the current minute in the hour, the other to the current hour. Some analogue displays will also have a rotating second hand. Much more commonly today is the digital display, which will show the time and often the date, by presenting numbers on a small, usually liquid crystal display (LCD).
Watch displays come in two distinctly different types. Firstly we have the analogue display; this type of watch face will have two hands, and one will point to the current minute in the hour, the other to the current hour. Some analogue displays will also have a rotating second hand. Much more commonly today is the digital display, which will show the time and often the date, by presenting numbers on a small, usually liquid crystal display (LCD).
The first digital displays used a series of LEDs to form each number, although now these have almost entirely been replaced with the more practical, harder wearing, and less power hungry LCD type displays. Along with the time, a digital watch will usually display the count of seconds, the date and may also have some form of stopwatch or timer capability.