Everybody have a watch with watch box ?Have a watch students must know watch what good!!!!Yes, the watch is the most concise modern timing tool, people can know what time it is through them.
The highest science and technology watch than a digital watch.Electronic watch with watch box, display the machine not only can display the time, also can display the current year, month, day, can also set the bell, the timer, electronic watch without gear, only had a specific chip and battery, surprisingly accurate time in 24 hours a day, a digital watch won't have a second error.Electronic watch light weight, easy to carry, it is an indispensable part of people life.
There are two types of watches: one kind is the mechanical watch, one kind is quartz watch.
Talk about the mechanical watch for first.Mechanical watch in general can also be divided into two categories: hand watches and automatic rubber watches.Both to be wind power machinery, to drive the gear rotate and thus promote the clock.Spring is to provide energy for mechanical parts, every year will have to replace a clockwork, so you can make the clock movement endlessly and still accurate.But the precision mechanical watch far than Shi Yingbiao precision.
Quartz watch, are made of quartz crystal vibration and moves a second hand watch.Quartz is a kind of super precision time watch, the clock is always exercise regularly.Quartz crystal sustainable work eight to ten years, but this time, the crystal will slowly deteriorate, lead to watch the time is not allowed.
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