A mechanical clock is a timekeeping device that uses gears and springs to measure time. It operates through a series of interconnected components, including a mainspring that stores energy, a gear train that transfers this energy, and an escapement that regulates the release of energy to keep accurate time. These clocks can be found in various forms, such as wall clocks, pocket watches, and grandfather clocks. Unlike digital clocks, which rely on electronic components, mechanical clocks are entirely mechanical, showcasing intricate craftsmanship and engineering. They often require winding to maintain their function and can last for many years with proper care.