what's automatic watches

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What’s the automatic watch? A watch whose mechanism is fitted with a device,(rotor) that automatically winds the spring by using the force of gravity. An automatic is a mechanical watch whose mainspring is wound as a result of the wearer's arm motion. The movement of the wrist and body causes the rotor, a metal weight attached to a winding mechanism, to pivot freely on its staff in the center of the movement. The rotor rotates back and forth in a circular motion at the slightest action of the wrist. The rotor's movement winds the mainspring, a flat coiled spring that powers mechanical watches. Rolex refers to its automatic watches as "perpetual." Automatic, self-winding and perpetual all mean the same thing: the watch winds itself. Many people appreciate the craft involved in making a mechanical automatic movement. They like the fact that this technology is hundreds of years old, involves many moving parts, and yet keeps very accurate time. (Many automatics come with glass backs which enable the wearer to view the action of the rotor and other moving parts.) They appreciate the human element involved in an automatic watch, that the movement is assembled by hand. Others like the fact that automatics run on so-called "clean," natural energy wrist power. A person's normal arm and wrist motion will keep an automatic watch properly wound. If you haven't worn an automatic in a while, it is best to wind the stopped watch before putting it on. Ten to 15 turns of the crown is usually enough to give full power to the mainspring. Shared by Iwantwatches.com __DEFINE_LIKE_SHARE__