We have always wanted to know the time of day. In the Stone Age, sticks were put in the ground, and people saw how the direction and length of shadow changed throughout the day. Sundials were developed as early as 5,500 years ago in Egypt. Personal sundials were around in Roman times. By the 1270s, mechanical clocks appeared on towers in English and Italian cities. As technology improved, clocks became smaller until eventually, they were small enough to put on a wall or table in a house. Soon they were small enough to fit in one's pocket. Thus a pocket watch was an extension of clock-making technology rather than an invention in its own right.

Since the mid-late 1950's Rolex has been making "tool watches". These watches were designed for specific professional or adventurous tasks and/or pursuits. The classic style of such watches has lent themselves to be universally respected for their no-nonsense quality and timeless sophistication in even the most formal of occasions.

A wristwatch (relogios) 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.