Watches history and remarkable development

A  watch  is  a small timepiece typically worn either on the wrist or attached to a chain and carried in a pocket, with wristwatches being very common type of watches today. They evolved in 17 century from spring power clocks, which appeared in 15^th century. The watches which were introduced for the first time were strictly mechanical. As technology progressed, the mechanism used tom measure the time have, in same case been replaced by use of quartz or electromagnetic pulses and are called quartz movement. The first digital electronic watch was developed in 1970. 

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