The second wheelSecond Wheel The second wheel is a gear in a mechanical watch movement that is responsible for driving the second hand of the watch. It is typically located near the center of the movement, and it is connected to the gear train, which transmits energy from the mainspring to the escapement mechanism. The second wheel receives energy from the gear train and rotates at a steady rate, causing the second hand to move around the watch dial. [Learn More] is a gear in a mechanical watch movement that is responsible for driving the second hand of the watch. It is typically located near the center of the movement, and it is connected to the gear train, which transmits energy from the mainspringMainspring The mainspring is a spiral-shaped metal spring that stores energy in a mechanical watch movement. It is located inside the barrel. The mainspring is wound, either manually or automatically. The mainspring unwinds over time, and the watch will stop running when the mainspring is fully unwound. [Learn More] to the escapementEscapement The escapement is a mechanism in a mechanical watch movement that regulates the release of energy from the mainspring and keeps the watch ticking at a steady rate. The escapement is made up of two main components: the escape wheel and the pallet fork. The escapement is responsible for the ticking sound of the watch, and it ensures that the watch runs at a consistent rate. As the escape wheel rotates forward, it locks and unlocks with the pallet fork, allowing a small amount of energy from the mainspring to be released. This causes the balance wheel to oscillate and the watch to 'tick'. [Learn More] mechanism. The second wheel receives energy from the gear train and rotates at a steady rate, causing the second hand to move around the watch dial.