1914 the first world war broke out, States the military realized that "free hand" watch the importance of this just inspired people opponents with strong demand for watches. In 1926, invented the first self winding watches, from 1960 onwards, the traditional round tables generally liked by the public. Further improvement of Swiss watches, is the timing of pocket watches, calendars, Tourbillon and automatic winding device miniaturization, and positions to watch. In 1952, the United States, France and Switzerland produced a spreadsheet. In 1967, electronic clock and center of Neuchâtel has developed a quartz wrist watch, in different Swiss brand name and in 1970 started mass production. Since then, new technology developing rapidly, different brands of wrist watch also began to develop rapidly.