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Definition of Automatic watch

Automatic watch Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
An automatic or self-winding watch is a mechanical watch in which the mainspring is wound automatically as a result of natural motion of the wearer's arm, to provide energy to run the watch, making manual winding unnecessary. A mechanical watch which is neither self-winding nor electrically driven is called a manual watch. Many of the mechanical watches sold today are self-winding.

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