A quartz watch does have a battery. In fact, the battery is one of the key components that makes a quartz watch so accurate and reliable.
A quartz watch works by using a small battery-powered oscillator to keep time. This oscillator is typically made up of a tiny quartz crystal, which is a piezoelectric material that vibrates at a specific frequency when an electric current is applied. The frequency of these vibrations is incredibly stable and can be used to accurately measure time.
To keep time, the oscillator circuit sends electrical pulses to the quartz crystal, causing it to vibrate at a precise frequency. This frequency is divided down to create a regular ticking motion, which is used to measure time. The ticking motion is typically 32,768 times per second, which represents one second of time.
The battery in a quartz watch provides the power needed to drive the oscillator circuit and keep the watch running. The battery is usually a small, button-shaped cell that is easy to replace when it runs out of power. Most quartz watch batteries will last between one and three years, depending on the watch and its usage.
Replacing the battery in a quartz watch is typically a simple process that can be done by a professional watchmaker or by the wearer themselves. The back of the watch is removed to access the battery compartment, and the old battery is removed and replaced with a new one. It’s important to use the correct type of battery for your watch, as using the wrong type can damage the watch and cause it to stop working.
In summary, a quartz watch does have a battery, and it is a key component that makes the watch so accurate and reliable. The battery provides the power needed to drive the oscillator circuit and keep the watch running, and is typically a small, button-shaped cell that is easy to replace when it runs out of power. If you own a quartz watch, it’s important to be aware of the battery life and to replace the battery when needed to ensure that your watch continues to keep accurate time.