Grasshopper escapement illusion of lights rotating at various speeds about three concentric circumferences on the clock's face. The pendulum speeds up, slows down, and sometimes stops, but returns to the correct time every five minutes. Taylor designed the clock to remind himself of his own mortality. A grasshopper-type escapement is used in an entirely new mechanism intended for wristwatches. This new type of mechanical regulator uses flexible structures both in the escapement and the oscillator. A silicon wheel oscillates about 86,400 times an hour, approximately three times faster than in conventional wristwatches. The initial development was done at the Swiss Center for
Anchor escapement it unwinds. An escapement in which changes in drive force do not affect the rate is called isochronous. The superior performance of the deadbeat over the recoil is due to improved isochronism. This is due to the different ways changes in drive force affect the swing of the pendulum in the two escapements: When the deadbeat was invented, clockmakers initially believed it had inferior isochronism to the anchor, because of the greater effect of changes in force on the pendulum's amplitude. Recent analyses point out that the nonisochronism of the anchor can cancel the circular error of the pendulum. That