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目前市场上出售的电子手表,绝大部分采用石英为振荡器,因此又称石英式电子手表。根据指示时间方式的不同,它又分为指针式和数字式。指针式为第三代电子手表,数字式是第四代电子手表。第三代和第四代的区分是:第三代尚未完全摆脱机械,还有一个微型马达和几个齿轮,用以驱动指针走动;第四代已经完全电子化,其构造原理如同一台微电子计算器。这两代电子表都用小型电池作为动源。指针式石英手表有两种结构:一种是跳秒式,秒针每秒钟向前跳一下,六十秒跑一周;另一种是秒针连续运动式,徐徐向前,六十秒转一周。选购检查时,可把表把拉出
Currently on the market for sale of electronic watches, the vast majority of quartz oscillator, also known as quartz electronic watches. According to the different ways of indicating the time, it is divided into pointer and digital. Pointer for the third generation of electronic watches, digital is the fourth generation of electronic watches. The third generation and the fourth generation of distinction is: the third generation has not yet completely get rid of machinery, there is a micro-motor and a few gears to drive the pointer to move; the fourth generation has been fully electronic, its construction principle is the same as a micro electronic calculator. Both generations of electronic watches are powered by small batteries. Analogue quartz watch has two structures: one is jumping second, the second hand jump forward every second, sixty seconds to run a week; the other is the second hand continuous movement, slowly forward, sixty seconds turn a week. Optional inspection, the handle can be pulled out