Are DW watches waterproof? What should you do if water gets inside?

　　Many friends preparing to buy a DW watch may not fully understand the waterproof performance of watches,DW watchesare they waterproof? What should you do if water accidentally gets inside? I will answer these questions for you below.

　　Are DW watches waterproof?

　　The waterproof performance of DW watches mainly relies on waterproof rubber rings at the crystal, case back and crown, alongside a screw-down crown to achieve the corresponding water-resistance standards. The water resistance of DW watches is typically graded as follows: Not waterproof (no marking on the case back). Sweat-resistant.

　　Regarding the water resistance of DW watches, both national and international standards have clear regulations: any DW watch marked as waterproof must withstand a minimum of 2 atmospheres, meaning no water ingress at a depth of 20 metres. A 30-metre water resistance indicates that the DW watch can withstand 3 atmospheres, and so on. The premise of this standard is that testing is conducted under laboratory conditions: the temperature is maintained at 20-25 degrees Celsius, and both the DW watch and the water remain stationary. If the DW watch prevents water ingress under these conditions, it passes.

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　　Methods for handling water ingress in DW watches

　　Method 1: If an ordinary mechanical DW watch has become damp, you can wrap it tightly in several layers of toilet paper or moisture-absorbent flannel, place it near a 40-watt incandescent bulb at a distance of about 15 centimetres, and bake it for roughly 30 minutes, after which the moisture inside the watch will dissipate. Avoid holding the crystal of the DW watch directly close to a fire for heating, so as to prevent the crystal from becoming distorted by heat.

　　Method 2: Wear the watch backwards on your wrist with the crystal facing inward and the case back facing outward; the moisture will vanish after two hours. If water ingress is severe, it is best to take the watch to a repair shop immediately for servicing to remove moisture from the movement and prevent components from rusting.

　　Method 3: Place granular silica gel together with the water-logged DW watch inside a sealed container. After a few hours, take the DW watch out, and all moisture will have disappeared. This method is simple and economical, causing no harm to the precision or lifespan of the watch. Silica gel that has absorbed moisture multiple times can be dried at 120°C for several hours to regenerate its moisture-absorbing capacity, allowing it to be reused repeatedly.

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　　Factors affecting the water resistance of DW watches

　　1. Environments with large temperature differences also easily cause water to enter the timepiece

　　Generally speaking, water-resistant watches achieve water-resistance through the use of waterproof rubber gaskets and waterproof paste. However, high temperatures will accelerate the ageing of waterproof gaskets and waterproof paste.

　　When the temperature rises, the waterproof gasket expands and the waterproof paste becomes thinner. When the temperature drops, the waterproof gasket contracts and the waterproof paste becomes more viscous. Back and forth, this may create small gaps allowing moisture to take advantage and enter. This situation becomes particularly common in winter. In northern areas with central heating, the temperature difference between indoors and outdoors increases, making it very easy for condensation to appear in the timepiece.

　　2. Corrosive environments will also cause water to enter the timepiece

　　Corrosive liquids can cause the water-resistant gaskets to harden, reducing their effectiveness. Daily careless actions can pose a risk of water ingress for a watch. For example, not cleaning the watch promptly after a sweaty run, wearing a daily water-resistant watch while swimming or paddling at the beach and getting it wet without a second thought, or habitually spraying perfume on the wrist where the watch is worn... all these can lead to water entering the watch.

　　Conclusion: DW watches possess a certain level of water resistance, but wearing them while swimming or showering is not recommended, as this will inevitably affect the lifespan of the watch.