American Invents Self-Powered Mechanical Watch Movement

The world's first self-powered mechanical watch movement has been invented by American master watchmaker Steven Phillips. The mechanism, which he has trademarked as the "Eternal Winding System" (EWS), is continually powered by a temperature-sensitive bi-metallic coil. "You can lay an EWS watch down on a table, leave it alone and come back in two years, and it will still be running," Phillips told JCK. An international patent for the movement, almost three years in development, was issued by the U.S. patent office to Phillips in October. The horological breakthrough was first reported in the November issue of the consumer magazine International Wristwatch. Phillips's achievement has generated interest among the international watch community. In an interview with JCK, Phillips said that he has been contacted by "a whole bunch of watch companies, including all the major watch manufact

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