First, watch water
   Watch waterproof to rely on the watch glass, back cover, the table to waterproof apron, etc. of an appropriate standard. Any water table should not be wearing a wash hot water bath, sauna, or in the temperature environment. Waterproof apron by the temperature impact of thermal expansion and contraction voids and accelerate the aging will allow mechanical damage causing water and table water condensation, seriously. Watch waterproof aprons and table (containing water rings) should be changed regularly depending on usage. Quartz watch is required in each time you change the batteries at the same time replace the waterproof parts, in order to ensure good water resistance.

 
  Second, the travel time error
   Usually mechanical watches permissible error for about 30 seconds a day, the quartz watch about 15 seconds per month. Analog quartz needle table at the right time to dial fast one minute. Because the allocation of a good needle into the table after the pointer does not immediately move. Watch to avoid contact with the magnetic field. Automatic mechanical watches and quartz watches, such as lying not wear or swing is not enough will cause the watch to stop and go, stop left again wear should be the full winding.