The break out of World War I in 1914, the nation's military realized benefit of the "free hand" watch, this inspired strong demand for the general public opponent wearing a wrist watch. In 1926, invented a self-winding watch, from 1960 onwards, the traditional round table kind commonly by people like. Further improvement of the Switzerland check out, pocket watch with chronograph, work schedule, tourbillon and automatic rotating device to be miniaturized, which was installed on the watch. 1952 in the united states, Italy and Europe each produce a spreadsheet. In 1967, Neuchatel electronic wrist watch developed first quartz arm bed sheet, and different Switzerland brand name to begin mass production in 1970. Ever since then, new engineering begun http://www.oakmont-pa.com/rss.html to quickly develop different brands of the arm table also begun to develop rapidly.
Is the use of a constant cycle, continuous vibration of the vibration process. Multiplied by the vibration frequency and the vibration of the vibration cycle, it is rolex watches comparable to the passed time = vibration period × vibration frequency. Usually by the energy, gear train, escapement, vibration process, the tip institutions and an additional mechanism of several parts. Power -- spring or weight, mechanical alarm clock work when the strength of that time period bar, the growth rate of the gear coach can run continuously for rolex prices several days, the timing of the alarm clock frequency escapement to meet the people "s concept, put the rudder or balance wheel to management the speed of the alarm clock, timekeeping (at the moment) agencies to tell people: just last beep points.