Watch repair knowledge
It's usually a mechanical watch. This is a mechanical watch that relies on gears. The watch shows the number of diamonds. The number of diamonds is not the number of diamonds in the watch, but the number of gear axes of the watch. It is often used instead of artificial diamonds. Because of the wear resistance of synthetic diamonds, the more diamonds are drilled on the watch, the longer the life of the watch. However, the watch gear can not be processed with hard materials such as diamonds. It can only be made of steel and used as an axle. The smaller the watch, the thinner the axle. Tens of thousands of turns per day depending on the trajectory of the borehole. Oil is used to reduce wear and tear. The axle is in dry wear condition after oil drying. In a few years, the life of the watch will come.
Most of the mark waterproof function, such as 30 meters, 50 meters, 100 meters, etc. There are also parts that are not waterproof. Mark the watch as waterproof, but do not wear it in a sauna or warm bath. Because after the waterproof ring shrinks, the hot air will not enter the sealed capsule and disperse, the fog can not be treated in time, and corrosion and rust will occur. Therefore, under normal conditions, a watch is worn. In fact, the water resistance of the watch mainly depends on several small rubber rings. Rubber rings age after a long time. Loss of elasticity creates gaps that lead to water and air intake. Therefore, the sealing rubber ring should be replaced regularly to ensure the quality of the watch's waterproof ability.
This article is an unauthorized grab from Experience