Escape wheel

Escape wheel (click to enlarge!)
Escape wheel

Interaction of [[Balance wheel]], [[lever]] and [[escapement]] wheel as part of the oscillating system (click to enlarge!)
Interaction of Balance wheel, lever and escapement wheel as part of the oscillating system

Escape wheel (also Escapement wheel)

Part of the oscillating system of a watch movement

The fastest moving wheel of the watch movement is part of the escapement. It is called the escapement wheel. For watches with anchor is also referred to as the escape wheel.