Maintenance of common sense. (1) wear watches, the hands of the case on the corrosive sweat, steel case is nickel-chromium alloy, corrosion resistance is better, semi-steel case is copper, long-term contact with sweat, easy to corrosion, should be Often wipe with a soft cloth sweat or mat on the plastic table care, to prevent its erosion by sweat. (2) do not arbitrarily open the table cover, so as not to affect the movement of dust into the does not go, to prevent the hairspring deformation; (3) Do not put the watch in a closet with mothballs to avoid oil deterioration. The front end of the balance wheel should not be exposed excessively (to the main plate through-hole) after it is inserted into the main plate hole, preventing it from rubbing against the intermediate wheel or barrel wheel. When the arbor is pulled out of the direction of the needle, the sub-wheel should still be present in the main plate hole. Otherwise, the arbor will not only shake, but will also damage the matching of other cooperating parts. The diameter of the balance wheel should be slightly smaller than the diameter of the small round of the main splint, the balance wheel in its hole sensitive to change without shaking better. (4) Do not put the watch on the radio, TV, so as not to magnetization. Unless the running water into, or almost is not rusty, so wash oil when you dip in a little wash oil can be, in fact, do not need to open. After finishing the B part of the same as some of the first into the health oil stains plate, soak for 10 minutes on the back of the white paper dried and placed around the parts box. (5) long-term storage does not wear watches, should be on a regular monthly winding, the parts will not be in a static state for a long time to ensure the performance of the table machine should be Mr. initiative, fast dial button operation in addition to operating instructions, The vast majority of watches should be avoided as much as possible from 8:00 to 4:00 in the morning time, but also the most stirring precision is getting lower and lower, overnight, when the automatic operation of the table does not go away, the internal parts of the loss once Very serious,