Dead Beat Escape Wheel FHS 11 cm is an escape wheel specifically for Dead Beat Movements 141, 151, 241, 351, 451, 1051, 1151, 1161 and 2061. Dead Beat Escape Wheel 11 cm is specifically for movements with a pendulum length of 11 cm. Pendulum length is indicated on the plate of the clock, it is not the actual measurement of the pendulum.