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单词 Electric watch
释义

Electric watch

英语百科

Electric watch

Hamilton electric watch. This model has a Hamilton caliber 505 (Moving coil system, contact controlled)
Lip electronic watch, caliber LIP R 184 (Fixed coil system, contact controlled)
Bulova Accutron Spaceview (electronic with tuning fork) 1967

In horology the term electric watch is used for the first generation electrically-powered wristwatches which were produced beginning in 1957, before the commercial introduction of the quartz wristwatch in 1969 by Seiko with the Astron. 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. They were superseded by quartz watches, which had greater accuracy and durability due to their lower parts count. Recent automatic quartz watches, which combine mechanical technology with quartz timekeeping, are not included in this classification.

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更新时间:2025/6/23 12:27:57