This is a reproduction of a wooden Verge & Foliot escapement clock. Clocks similar in design were thought to be the first clock ever made that incorporated an escapement mechanism.
Original Verge & Foliot Escapement Clock
Original clocks such as these date back to the late thirteenth century. The rate of the clock is regulated by moving the weights on the oscillating cross-arms. Many of the wooden clock kits sold today to hobbyists are of similar design. The development of the escapement mechanism paved the way for all subsequent mechanical clocks, so the importance of this innovation can not be overemphasized.
How it Works
I’ve added a video of the escapement on my clock below, but you can also see an animated version of the physics here.