Why does the inside of the watch glass still mist with water when it's obviously a waterproof watch?

   Watches are closed tightly, and waterproof watches are even more hermetically sealed. So why do fog and water spots sometimes appear inside the watch glass and where do they get in?

    As we know, water is highly permeable and can be described as "pervasive". Therefore, although the watch is sealed, but it is not ironclad, there are still some places with extremely small pores. For example, the watch glass and the upper shell connected to the parts; the upper shell and the back cover connection parts; on the bar stem head and the upper shell of the stem head tube parts, all so that the moisture can take advantage of. When the watch is worn on the wrist, people wash their hands or encounter rainy days, moisture can soak in from these parts.

    Especially the use of a long time watch, sealing performance has gradually declined, more likely to appear this phenomenon. In addition, summer temperature is high, there is a lot of rain, the air contains more water vapor, the humidity is greater than in winter, and the moisture is easy to invade, so it is easier to appear the phenomenon of fog and water spots in summer. Another reason for the appearance of fog and water spots inside the watch glass is that under the condition of high temperature, the watch is subjected to heat and suddenly meets cold, and the air inside the watch can not be dispersed in time, so it will be condensed into fog or water droplets, and stained on the inside of the watch rose glass. If you take the watch to the refrigerator to get something, wash your hands, rain, lift the lid of the pot or take the watch with the sweaty wrist and so on. All easy to make the watch glass inside the fog or water points.

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    Watch watch glass appear fog or water points, should be timely overhaul, wipe off the fog and water points, the core drying, in order to prevent the water into the gas for a long time, the dial color, the core rust. However, if there is only some fog, after the climate dries up, it will eliminate the tip by itself. Preventing fog and water points on the watch is very simple: to know which way is easy to make water invasion of the watch, such as laundry eyes, wash vegetables, wash your face, wash your hands, do not wear a watch; in a humid environment A.. Do not open the back cover of the watch; summer wrist often sweat when padded with plastic watch rest; rainy days, pay attention to avoid rain.