The watch escapement is the centre of the time piece. It is the
escapement which divides the time into equal segments.
The balance wheel, the gold wheel, oscillates backwards and forwards on a hairspring
(not shown) As the balance wheel moves the lever is moved allowing the escape
wheel (green) to rotate by one tooth.
The power comes through the escape wheel which gives a small 'kick' to the palletes
(purple) at each tick.
