Matches in DBpedia 2015-10 for { ?s ?p "In horology the term electric watch is used for the first generation electrically-powered watches which were produced beginning in 1957. before the invention of the quartz watch in the 1970s. Their timekeeping element was either a traditional balance wheel or a tuning fork, driven electromagnetically by a solenoid powered by a battery. The hands were driven mechanically through a wheel train."@en }
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- Electric_watch comment "In horology the term electric watch is used for the first generation electrically-powered watches which were produced beginning in 1957. before the invention of the quartz watch in the 1970s. Their timekeeping element was either a traditional balance wheel or a tuning fork, driven electromagnetically by a solenoid powered by a battery. The hands were driven mechanically through a wheel train.".