The watch waterproof performance usually according to its grade is divided into: not waterproof (table cover no logo), anti sweat (SWEAT-RESISTANT), general (WATER-RESISTANT) waterproof, 30 meters waterproof (30M, 3ATM, 3BAR), 50 meters waterproof (50M, 5ATM, 5BAR), diving table 100 meters waterproof, 200 meters waterproof, 300 meters waterproof etc.. But the premise of this standard when tested in laboratory conditions: temperature maintained at 20~25 degrees Celsius, and watches and water is the static condition. Remember, in our daily life in the standard state, waterproof 30 meters, just splash, can wear a wash, wash; 50 meters, can use a small amount of cold water to wash, can not be soaked; 100 meters, can be in the pool or the sea surface; more than 200 meters, can dive.

In addition, any FangShuiBiao shoulds not be wearing to wash a hot water bath, sauna or the great changes in temperature in the use of environment. Because the waterproof rubber ring is affected by temperature will appear gap and accelerating aging and cause water and table appeared in water heat bilges cold shrink, serious will make parts damaged.