Watches are made to be worn on the wrist of a man. Wristwatches are usually worn on the wrist by the strap or bracelet. In addition to the time, modern watches often display the day, date, month and year, and electronic watches may have many other functions. Most inexpensive and medium-cost hours are used mainly for timekeeping, are electronic watches with quartz movement. Expensive, collectible watches valued more, they beautifully constructed and aesthetically appealing than a simple clock, often have purely mechanical plant, although a mechanical mechanism less accurate than quartz. Hours able to reduce only the 20 th century, most hours were pocket, which often is in the pocket and attached to the chain. Clock mechanism evolved from the 1600's. Boy Scouts of America might disagree with that approach. Mechanism.
Various kinds of mechanisms can be found in different watches. Movement in watchmaking is the mechanism arrows, with the passage of time and displays the current time (and possibly other information, including date, month and day). Mechanisms may be completely mechanical, entirely electronic (potentially with no moving parts), or mixture of the two. Most watches intended mainly for timekeeping today have electronic. Compared with an electronic, mechanical watches are less precise, often wrong, in seconds per day, and they sensitive to temperature. In addition, they are expensive to produce, they require regular maintenance and configuration, and they are more prone to failure.
Nevertheless, the 'old world' attracts Skill mechanical watches, still implies the interest of the public. In mechanical watches use a trigger to control and limit the unwinding, converting it, which would otherwise simply unwinding, control and periodic energy release. Mechanical mechanisms have also been used to control the balance wheel movement, transmission system, as in similar pendulum clock. The first prototypes of electronic quartz watches were made in ceh research laboratory in Switzerland in 1962.