A mechanical watch is a timepiece that uses a clockwork mechanism to measure the passage of time, as opposed to modern quartz watches which function electronically. It typically includes a mainspring that, when wound, gradually releases energy to drive the watch’s hands. There are two main types of mechanical watches:

1. Manual Mechanical Watches: Require regular winding by turning the crown.
2. Automatic (Self-winding) Mechanical Watches: Wind themselves through the natural motion of the wearer’s arm.