History of the Seiko Quartz Movement
Quartz WithSeiko's passion, the Seiko Quartz has brought innovation to the history ofwatches The quartz watch, developed in 1969, revolutionized the conventional concept of watches. This is a watch that has a crystal oscillator at its core for accuracy. The crystalline body of a crystal cut to a fixed shape has a characteristic to generate steady vibration if voltage is applied to it. Through the ages, the idea has existed that this crystal-specific electrical property is used for a crystal oscillator to be the standard of timekeeping accuracy of watches. However, to take advantage of quartz crystal, whose excellence...