Daily Watch Waterproofing Knowledge Collection Sharing
sourceInternet
publisherKris
time2023/07/18
- Many friends have always had a misunderstanding about the concept of waterproof watches, which is that since they are waterproof watches, they should be able to prevent any water.
Daily Watch Waterproofing Knowledge Collection Sharing
Many friends have always had a misunderstanding about the concept of waterproof watches, which is that since they are waterproof watches, they should be able to prevent any water. But reality has dealt a harsh blow, with almost every year the rate of watches receiving water for repair remains high. Most of these watch malfunctions are caused by touching hot water, so why can't watches touch hot water? Today, the editor of Wanda Shi will share some daily watch waterproofing knowledge with everyone. Interested friends, let's take a look together!
The waterproof principle of a typical watch is very simple. From a structural perspective, the back cover and case are connected by threads and sealed with waterproof washers. In this way, the gap is filled with waterproof rubber rings. Another feature of Diving watch is that the screw handle is waterproof by tightening. So why can't a waterproof watch touch hot water? In fact, it is because of Thermal expansion. The watch case, watch glass and waterproof ring are made of three different materials, so their thermal expansion degree is different. When the cooling speed is different, there will be tiny gaps, and water molecules will take advantage of the void. Once water or steam enters, it will affect the movement of the watch.
There are three specific effects of moisture entering the watch: ① there is moisture in the watch case, which will gradually cause the lubricating oil to fail and deteriorate the performance of the movement when moving; ② Mist will be generated inside the watch mirror, and over time, it will cause discoloration and rust on the watch needle and dial; ③ If there is moisture inside the watch case, the components inside the movement will gradually rust, and the performance of the movement will be damaged. Therefore, no matter how waterproof a watch is, it should not be worn for bathing or sauna. Although the watch may not show anything once or twice, frequent use of this will accelerate the aging of the waterproof rubber ring, which will eventually cause water to enter the watch, damage the movement parts, and affect the normal running time and service life of the watch.
In addition to hot water causing water to enter the watch, it can also cause damage to the movement. Opening the back cover of the watch can also affect its sealing performance. Because the process of assembling a watch is usually carried out in a professional workshop, there are strict requirements for temperature, relative humidity, cleanliness, and other aspects, such as air humidity requirements of less than 70%. It is difficult to meet the general environment, and in addition, as long as the back cover of the watch is opened and closed, it must pass the waterproof test again to ensure good sealing performance of the watch, in order to meet the technical requirements. What should I do if the waterproof performance of a watch is poor and mist appears inside the glass?
In fact, there are two possibilities for fog inside the glass of a typical watch: the first is that the watch is assembled in an environment with high relative humidity. Everyone knows that relative humidity is a percentage value of how much water vapor is contained in the air. When the water vapor in the air becomes cold, it will condense into fog on the watch glass. The fog formed in this situation will disappear within about 1 minute, indicating that the watch does not have any waterproof defects.
The second type is that there is a problem with the sealing of the watch, which is caused by water vapor entering the watch. If the fog does not disappear within 1 minute, or if condensation occurs frequently, it indicates that water has entered the watch case and needs to be sent to a regular watch repair center for treatment as early as possible. Since the impact of water ingress on the watch i
Actually, it's not the case either. For cold water, as long as we know the waterproof level of our watch, we can spray water within an appropriate range. Everyone knows that the waterproof testing of watches is carried out in the laboratory, which means that whether it is waterproof for 30 meters or waterproof for 50 meters, it is necessary to prevent water from entering static water. But once water flows, it will increase the pressure and cause water to enter. So what waterproof grade wristwatch can be used for swimming in the water?
Generally, watches are classified into "waterproof watches" and "diving watches" based on their sealing properties. A waterproof watch with a pressure resistance value less than 100 meters is called a "waterproof watch" and is suitable for general waterproofing in daily life. The "Diving watch" is a professional watch that can swim and dive in the sea and is suitable for underwater operations. Diving watch is a kind of professional watch with high technical content. Each part of the watch has undergone special technical design and precision processing. The watch mirror and sealing part must withstand the pressure of ten atmospheres or even dozens or hundreds of atmospheres.
But after the Diving watch comes out of the sea, it is impossible to clean up the salt, fine gravel and other sundries in the watch with cloth alone. The correct method is to first immerse the watch in a clean water basin, gently remove the dirt from the watch, and then carefully clean the gaps on the inside and outside of the watch frame, strap, and buckle with a soft brush. If conditions permit, removing the strap and cleaning it with ultrasonic waves can achieve better results.
I want to say Goodbye to you again.This concludes today's sharing.Thank you for your support to Window's Clock & Watch CO.,LTD .!