What is a mechanical watch?
Unlike a quartz watch which is powered by a battery, mechanical watches are powered by something called a mainspring which has to be wound up before the movement will work. The spring stores and transfers the energy through a series of gear components, regulating a release of energy to power the watch.
There are two types of mechanical watches available: a self-winding mechanical watch and an automatic mechanical watch.
With a self-winding movement you have to physically twist the crown of the watch to power up the intricate components inside. Depending on the model you have will depend on how often you have to wind the watch.
The automatic movement quite simply means that the watch becomes powered automatically through the movement of your wrist. Every time you move, energy is created by the oscillating rotor which spins around and powers the watch.
Mechanical watches are generally more expensive than quartz, but the movement is much more impressive and it means that you don’t have to worry about getting the battery changed every 2-3 years. You can find some examples of mechanical watches here.