1, the speed of the watch is mainly determined by the swing frequency. Generally, the greater the swing, the smaller the swing frequency, and the smaller the swing, the greater the swing frequency. Generally speaking, the wristwatch is controlled by the release of the hairspring, which is the basic principle of adjusting the speed. Making the retractable hairspring longer will increase the swing, reduce the swing frequency and slow down the watch; On the contrary, if the pendulum frequency becomes larger, the watch will become faster.

2. The watch is affected by magnetic field. After the hairspring of a watch is magnetized, the ring is only displayed when it is worn. There are sticky or short-term loops, especially on the facade. The hairspring will droop due to its own gravity, and the shaking of the arm will aggravate its radial movement, so the magnetic energy effect will be displayed.

3. There is also a common fault that the mechanical watch moves fast, that is, the secondary outer ring of the hairspring rubs against the outer column of the hairspring, which is also manifested vertically and dynamically, especially when the watch is knocked before, and the hairspring is most prone to problems after deformation; This sub-position depends on the motion. If the ETA-type men's watch movement is widely used today, it is easier to display the left or upper position of the watch handle on the wrist. In this case, it is necessary to adjust the gap between the secondary outer ring of the hairspring and the outer post of the hairspring, and there should be a reasonable safe distance between them.