A watch waterproof watch waterproof depends on the table glass, back cover, table and so on the waterproof apron and meet the corresponding standards, usually according to its grade is divided into 30 meters, 50 meters, 100 meters, 200 meters, 300 meters, etc.
30 meters (i.e. 3ATM) waterproof meter, can be used in daily grooming or rain, that is, water splash only on the surface without any water pressure added to the table.
50 meters waterproof meter can be used for swimming and general housework.
Waterproof meters above 100 meters can be used for underwater work such as swimming and diving.
Any waterproof table should not be worn hot bath, sauna, or the use of temperature changes in the environment.
Because the waterproof apron affected by temperature will thermal expansion and contraction, there is a gap and accelerate aging, resulting in water and water condensation in the table, serious will make the machine damaged.
Keep the watch in its normal position.
Screw the head should be tightened, the head is wet with water or dirt, to wipe clean and then dial out to prevent water into the ash, do not adjust the table in the water.
Watch the waterproof apron and table (containing waterproof ring) according to the use of regular replacement.
Quartz watch in each battery must be replaced at the same time, to ensure good waterproof performance.
Two, travel time error is usually allowed for mechanical watch error of about 30 seconds a day, quartz watch about 15 seconds a month, the specific allowed error according to the movement of different watch.
Pointer type quartz two-needle watch in the time to dial up a minute, because the needle into the table, the pointer does not immediately move.
Watch to avoid contact with the magnetic field, such as on the electrical field or magnetic objects next to the field, may cause inaccurate travel time.
Automatic mechanical watches and automatic quartz watches need to produce enough swing to wind up the spring or charge the capacitor when worn.
Such as put not wearing or swing momentum will cause the watch to stop and go, stop and go again should wear enough spring.
Three, table mirror, case and strap table mirror material is divided into plexiglass, ordinary glass, sapphire glass, etc.
Case, watchband materials are common plastic, copper, stainless steel, tungsten titanium alloy, high-tech ceramics, gold, etc.
Sapphire glass, tungsten-titanium alloy and high-tech ceramics are abrasion resistant materials, and their hardness can reach Morse grade 9, 8 and 7 respectively (diamond is 10).
These materials can resist wear and tear, but they cannot withstand strong impact.
At the same time, some materials of equal or higher hardness, such as diamond, corundum, metal oxide, quartz crystal can damage these materials.
Grindstone, sandpaper, nail file, granite surface, concrete walls and ground contain the above material, will scratch the surface of these materials.
Watchcase, watchband to often clean, available toothbrush, clean fine, and finally wipe dry with clean water (if the watch is not waterproof, cleaning to be especially careful.
Leather watchband cleaning application of special leather cleaner).
Because of sweat, dirt and other corrosion watch appearance parts, and can cause skin allergies.
Similarly, the new watch to tear off the protective film on the back cover, otherwise sweat will remain in the middle of the corrosion of the back cover.
To avoid contact with all kinds of chemicals, once encountered, to clean in time, so as not to cause plating discoloration, fall off, etc.
