what calls radio conrtolled watch ?
The so-called radio conrtolled watch , the body of the atomic clock and radio receiving system, by the national timing center to send an accurate time, received through the radio receiving system, after the CPU processing time display, radio meter 300,000 years error will not exceed a second. Simply put, it is a kind of watch that can automatically adjust the time after receiving the radio wave of standard time information.
Electric wave horological it is human timekeeping technology develops course, the 5th generation timer that follows hourglass, sundial, mechanical horological, quartz horological hind. The advent of radio horological technology and products is another revolution in the history of human timekeeping.