A wristwatch or a watch is a kind of a timepiece that a person wears for referring to time. Watches first came into existence in 1600s as a modification of spring powered clocks. Modern watches have a lot of other functions like that of a calendar in addition to the display of time.Most common type of wristwatch is worn on person`s wrist and is tightened with help of a watchband that is made up of nylon, leather, any other plastic strap, metal link or sometimes, even ceramic. Before this, watches were pocket watches which were carried separately.Watch...