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The Casiotron QW02 was the first watch released by Casio. The early 1970s was a period of technological change that saw a switch from mechanical to quartz timepieces. With a solid position in the calculator industry, Casio decided to enter the business field of timepieces. The company realized that by making digital watches, a type of quartz timepiece, it could make the most of the LSI technology it had developed for calculators. In addition to displaying hours, minutes, and seconds, the QW02 was equipped with the world’s first watch calendar that automatically adjusted for longer and shorter months. With a conventional watch, it was necessary to reset the calendar date on the first of each month, but the QW02 eliminated this hassle. After that, Casio also realized a fully automatic calendar watch that even correctly displayed February 29 during leap years. In 1976, Casio released the X-1. In addition to telling time, the X-1 featured stopwatch and world time functions. Casio went on to develop many more multi-functional digital watches leveraging its digital technology.

History

List of Models

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