Compared with mechanical watches, quartz watches have small errors and are easy to handle, which is why many people choose quartz watches. However, battery replacement is often overlooked. Many people may think that it doesn't matter if the watch is dead. Facts have proved that the consequences of doing so will only bring damage to the watch. Why is this happening? Most quartz watches have silver oxide batteries inside. When the battery is left standing without electricity, it will leak for a long time and corrode the circuit board and other components. If the corrosion is serious, the whole movement needs to be replaced.