The Englishman John Harwood enriched the horology with an invention, which in the meantime is indispensable for the modern valuable watch: The automatic winding was initiated by the HARWOOD perpetual. Up to then the winding of wrist watches was only manually possible by winding the crown. The invention of Harwood however used the kinetic energy at the wrist of the wearer for tightening the mainspring by means of an oscillating rotor in the center of the watch movement, a perpetuum mobile for an omnipresent timepiece.
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