An internal component in a mechanical watch that transfers the power from a wound-up watch into the movement of the watch’s seconds hand by driving the balance wheel at a steady rate. Most modern watches use a “lever escapement,” comprised of an escape wheel and a lever with two pallets. The escape wheel is connected to the gear train (which receives energy from the mainspring) and the lever and pallets lock and unlock the escape wheel at a steady rate. This component is responsible for a watch’s ticking noise.

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