In order to explain the problem, firstly, it is necessary to understand why there’s error among watches.
How to minimize the clock error?
As we all know, watches (including mechanical clock, wall clock, clock, etc.) that sold on the market are generally at a fixed position. But as a result of the output torque from strong to weak changes and the friction and fatigue of the structural features, material and ring, as well as the spring and gear in the transmission will influence the accuracy of clocks. In addition, climate, the local environment and position are also the normal impact to the operation a pendulum. The quartz clock, overcomes the weakness of mechanical clock, uses the extremely stable and high frequency vibration of the quartz crystal as a time reference, and then after a micro stepping motor drives the gear, or the scanning pointer, indicating the time. Even so, due to the interference of temperature variation to the quartz crystal, the error will appear. The general frequency may be 15 seconds per day. This is allowed.
In order to reduce the error, first, the local temperature of the place where the clock located must be suitable, not too high or too low. Second, to move the watches or clocks as less as possible and avoid large vibration. If you have to move it, remember to handle it with care. Third, fully-wound at regular time.
