Overview Mechanical watch when the most common and special types of watches, which rely on purely mechanical components and principles to drive accurate pointer when the clock to provide energy, oscillation system to provide the frequency output is one of the ultimate manifestation of human use of machinery. Types of mechanical watches can usually be divided into the following two kinds: manual winding and automatic winding watch (AUTOMATIC) two. Both mechanical power sources are powered by the clockwork within the movement, driving gears and then promote the hands, but the power source in different ways. Manual mechanical watch is manually driven by the clock to drive the watch, the thickness of the movement than the average automatic winding watch some, relatively speaking, the weight of the watch light. Manual mechanical watches usually by rotating the crown / faucet to tighten the clockwork within the watch, the clockwork system to release kinetic energy to start the watch timer function, all of these processes are mechanical principles and structure to complete. Full winding of the clock can usually make the watch about 40 hours, longer up to eight days or more (powered by two sets of clockwork). Automatic mechanical watch is an improvement of the manual mechanical watch, the watch added a pendulum Tuo; when worn, the table Tuo Tuo because of wrist activity and rotation, and achieve the effect of the winding. But relatively speaking, the thickness of the watch is larger than the winding watch on the hand. Ordinary automatic mechanical watches still retain the manual winding function, in other words can still rotate the crown to winding, and only some cheaper automatic mechanical movement, such as the Seiko 7S26, 7S36 and ETA 2842, will omit this Features. And because the activity of the wrist watch will continue winding, automatic mechanical watches have the function of preventing the winding too tight, in order to avoid winding damage. However, the appearance of automatic mechanical watches, and did not completely replace the manual mechanical watch, but now the automatic mechanical watch more than manual mechanical watches. Since the beginning of the 20th century, automatic mechanical watches have many improvements, such as Seiko push Kinetic manual electric watch, the principle is still the wrist activity led to pendulum rotation to produce electricity. Features Mechanical watches as precision mechanical timing instruments and decorative items, must have both practicality and decorative. Good quality and accurate time to go, easy to use, fine technology, beautiful appearance, on the foot of the clock can be more than 36 hours continuous walk, durable, some watches also have a waterproof, shockproof, antimagnetic properties. The advantages of mechanical watches 1, through the regular maintenance wash oil, can be used for a long time; 2, no need to replace the battery; Disadvantages 1, the error is larger than the quartz watch, due to the quality of the production of high and low and the internal movement of the table vulnerable The impact of gravity causes errors. The error of a mechanical watch is usually calculated by the number of seconds per day, while the error of a quartz watch is calculated by how many seconds per month. 2, when the error is easily affected by environmental factors, the mechanical structure is more fragile than the quartz structure.
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