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There are many watch models on the market. But you cannot deny that a keychain pocket watch is a great option. From the pendulum, through the alarm clock to the great church, all mechanical watches work the same way. Mechanical means in this case is clockwork based on a system of gears in motion. When looking at model, there are usually larger weights that set in motion the gear sprockets, as the hanging of cuckoo clocks. In the pocket watches or moving force builds on a dock to wind a crown, a wheel attached to the watch face. The pier is an internal part of the clock consists of a spiral metal after compressing a spring is stretched, but very slowly in a controlled manner. The force that releases the keychain pocket watch spring to decompress is transmitted by gears, some of which move to different clockwise: the hour hand, minute and seconds. For this to work there are a series of complex regulatory mechanisms and accurate within the watches of this type, which can have a hundred different pieces. When the spring uncompressed finishes, it goes back and its mechanism prevents it from stopping. The current keychain pocket watch models are instead almost all electronic and most giving time using a digital display which reads the time and no longer by the hands or traditional needles. How does it work Many people despite advances continue to use today's digital watches, that's partly no doubt by the great fascination of these wonderful instruments of precision mechanics, which always fill us with questions about his operation, which attempt to explain at least in a simple way in this chapter. The best thing for that is to start the interaction with the clock has to put in place, i.e. winding. This implies that with a system of internal keychain pocket watch mechanism, the energy (force) exerted by the rotation is stored inside the clock for its operation, but precisely when we do this internally through the winding crown with the rotation is transmitted by the transmission or pinion steering and winding beneath the bridge drive the crown wheel, which rotates to the keg by operating below the ratchet, which has a brake on the ratchet to prevent the return of the pressure created by the rotation. Turning the barrel load to the center axis of the mainspring, which is a metal spiral that when you turn the barrel is concentrated due to its flexibility towards the center creating a force that tries to free the metal mass.
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