Word: accuquartz
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...gaining only a minute a year, compared with one or two minutes a week for most other watches. Bulova introduced the first marketable quartz-crystal watch in 1970, but its $1,350 cost was prohibitive. Late last year Bulova brought out an improved and cheaper version, the $395 Accuquartz, believed by many to be the best quartz watch on the market. By then Timex had begun marketing a quartz-crystal watch for $125. Hamilton came out with its $2,100 quartz-crystal Pulsar, and last month Japan's Seiko brought its three quartz timepieces to the U.S., the cheapest...
...tiny quartz bar that vibrates when charged by electricity from a mercury-oxide battery the size of an aspirin tablet. Ground to the proper thickness, quartz has the inherent capability of vibrating at a precise and predictable rate-32,769 times per second in the case of the Bulova Accuquartz...
Depending on the brand of watch, these vibrations control several different mechanisms that turn the hour and minute hands. Bulova uses the electronic tuning fork developed in its Accutron watch, a battery-powered model that is just a shade less accurate than the Accuquartz; Timex employs a conventional balance wheel; Benrus, the Swiss and the Japanese use a "stepdown" motor. Linking these mechanisms to the quartz crystal is an integrated electronic-circuit chip, and U.S. electronic firms are enthusiastically moving to supply the chips to the quartz watch market. Japanese, Swiss and American watchmakers are buying theirs from such firms...
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