Watch maintenance ts:1. Please do not bring the watch and ic objects close to each other;2. In case of water ingre (with air), it should be sent to the maintenance point for cleaning immediately to prevent the movement from rusting;3. If the back of the watch is attached with protective sheets or stickers, please remove them before , otherwise sweat will seep into the backing paper and ca the back of the watch to rust;4. Do not contact the watch with various soents and various s, otherwise the watch case, sp, etc. will be discolored and rusted due to erosion;5. The watch (only quartz watch) can run stably and accurately within the range of 5 ° C ~ 35 ° C at normal temperature. If the temperature exceeds 50 ° C, it will ca battery leakage or shorten the battery.Pool life. Do not leave the watch in the low temperature -10 ° C envment for a long time, beca the air will ca the time to slow down or go fast.Normal6. Watches can be divided into diving watches, waterproof watches and non-waterproof watches according to their waterproof performance. Watch waterproofing relies on waterproof rubber rings on the gla, back cover, crown, etc.Reach the corresponding standards, divided into different levels:(1) SWEAT-RESISTANT: It is very easy to understand and only prevents sweat from running into the watch;(2) General water resistance (WATER-RESISTANT): It is okay to ocnally encounter water, for example, you accidentally spray water on the flowers, and don't be nervous,It is no problem to k it off and we it clean. In short, it is to prevent accidental small spes in life;(3) Water-resistant to 30 meters (30M, 3ATM, 3BAR): The watch has the word "30M" on it. This is a waterproof watch, which can be d for daily grooming or rain, but the mainIf it is to prevent the movement from g damaged by dust and moisture. 30 meters waterproof, the profeional's expation is that each square centimeter area can withstand a preure of 3 kg, about staticIn the state, the preure is equivalent to a depth of 30 meters, and is equal to the preure of 3 atmospheres. For our ordinary consumers, we only need to remember 30 meters, which is a waterproof watch.Basic basics are fine;(4) Water-resistant to 50 meters (50M, 5ATM, 5BAR): The watch with the word "50M" on the watch, that is, a 50-meter waterproof watch, is what consumers really meanWaterproof watch, waterproof watch that can be d for swing and general howork. Remember not to adjust the crown in the water;(5) Diving watch (100 meters waterproof, 200 meters waterproof, 300 meters waterproof, etc.): It is a profeional waterproof watch, which can be d for underwater work such as swing and diving.ZhZhFriendly reminder:1. Any waterproof watch should not be brought into contact with hot water and steam (such as hot water bath, sauna, etc.);2. Try to avoid using in envments with large temperature changes. The temperature difference will ca the water in the air to condense, which will ca water ingre and water mist in the table.If there is fog in the watch, please go to a profeional watch repair department for cleaning and maintenance as soon as poible;3. Watches are precision instruments ar all, please them with care. Good usage habits can increase the life of your watch, bad habits will shorten the life of your watch.