The allowable error range of quartz meter with quartz core is (+15 seconds/month). The running time of quartz watches is driven by battery energy. The battery life of quartz watches varies from 12 to 24 months depending on the movement of the watches.
The battery life of quartz watches varies from 1 to 2 years depending on the machine core and use. High-grade three-needle quartz watches have battery exhaustion warning function. The second needle jumps abnormally, i.e. every four seconds. It reminds you to replace the battery in time. If you do not replace the battery in time, it may cause leakage of the battery and damage the internal parts of the watch. Some customers have several watches. When they don't wear them, they pull out the crown to stop the watch and stop looking at the watch on the surface. In fact, the battery is still discharging. If they don't change it in time, it will cause excessive discharge of the battery, make the battery leak, and corrode the machine core. The maintenance cost is far more than the replacement cost.