The time adjustment of the wall clock is mainly realized by the internal fine-tuning capacitor. Its function is similar to the speed adjustment needle of a mechanical clock. It is designed to eliminate the error of the resonant frequency of the quartz crystal and the influence of the distributed capacitance on the oscillation frequency. It is corrected by an external capacitor. Oscillation frequency, in order to meet the accuracy of travel time.
When the quartz clock travels fast, the capacity of the capacitor can be increased, on the contrary, the capacity of the capacitor can be reduced.
There are many types of quartz clocks, some are hung on the wall, some are placed on the table, and some are combined with other electrical appliances. However, in terms of the core components (movement) of the quartz clock, they are all the same.