Automatic watches, also known as self-winding watches, are mechanical watches that use the motion of the wearer's wrist to power the movement. The movement in an automatic watch is similar to that in a manual-wind mechanical watch, but with the addition of a weighted rotor that rotates with the movement of the wearer's arm, winding the watch's mainspring and keeping it powered.
Automatic watches are highly regarded by watch enthusiasts and collectors for their precision and craftsmanship. They offer the convenience of not needing to be manually wound, as long as they are worn regularly, and can run for up to 40 hours without being worn. Automatic watches are also often made with high-quality materials and may feature intricate designs and complications, such as chronographs, moon phases, and tourbillons.
Like all mechanical watches, automatic watches require regular maintenance to keep them running accurately, including periodic cleaning and lubrication of the movement. While they may be more expensive than quartz watches, which use electronic components, many people consider automatic watches to be a worthwhile investment due to their beauty, history, and enduring value.