fashionable digital watch

1. Check the appearance parts of the watch

The appearance of the watch can be checked from the aspects of the shell, the mirror, the dial, and the hourly second hand.The case should have no sand eye and obvious scratches, and the angular and symmetrical; the rear cover and the rotor of the upper shell should be tight; the distance between the two rings is equal to the distance of the case.In the middle of the middle, the depth of the hole is appropriate, so that the ring is not easy to fall off; there should be no defects and scratches on the surface of the mirror, transparent and bright; the three -pin installation is correct, there should be a correct safety gap between the needle and the needle, the mirror and the dial; the dial and the dial;The pointer is plated with good smoothness, no spots, and the dial scales line or night light is complete; there is about 0.1-0.3mm between the head and the case. 

2. Check the sensitivity of the watch 

The sensitivity of the watch refers to the flexibility of its swing automatically.The check method is: 

1) Shake the watches that have not been stopped by the clockwork, and use the power of shaking to observe the situation of the second hand: if the second hand stops walking in a short time, it meansAfter that, you can finish all (that is, the weak torque), and the sensitivity is high; if you continue to move around for a long time in seconds, it means that you cannot go all after the foot strip on the watch (that is, the torque of the clockwork).There are faults.

2) Slowly turn the watches that have not been stopped on the head, slowly turn the head, and observe the starting situation of the second point: the less the upper handle, the earlier the sensitivity of the watch, the lower the sensitivity of the watch; otherwiseThere are other faults.However, it should be noted that the watch is a little more staged than the traditional frequency (18,000 times / hour) of the traditional frequency (18,000 times / hour) due to the greater rigidity of the scarf.The high -sensitivity watch continues to move for a long time after the upper feet.

3. Check the distance and location of the watch pointer 

Between the acupuncture, between the mirror, the dial, and the three stitches, it should be kept a certain distance, otherwise it will cause the touch of each other to affect the normal operation of the machine.Observations can be observed during inspection.The position of the time and coordination of the timing of the chronth centers and the coordination is: dial the minute hand and clockwise to 3 or 9 o'clock, and observe whether the two needles are in right angles; dial to 6 o'clock, whether the two shots are straight; dial to 12 o'clock, and 12 o'clock.Whether two stitches are over. 

Fourth, check the entrance institution on the watch

Normal watches should be relaxed.When turning the top of the head, it feels more loose first, and gradually becomes tighter and tighter. When you can't continue to rotate your head forward, it means that the clockwork has been fully full and the upper -bar institution is working normally.If the upper head of the handle is rotated, it happens“The unusual sound of the chirgin, or the sliding of the top tooth, indicates that there are faults in the top institution.

5. Check the watch dialing institution

The watch should be flexible, reliable and pointer evenly when dialing the needle.During the inspection, the tightness of the coordination of the division and the central wheel axis should be reviewed.When dialing the needle, if there is no loose or tight feeling, it means that the rubber rubbing force is normal and the amount of refueling. On the contrary, there is a failure of the needle parts.