Galileo's escapement is a design for a clock escapement, invented around 1637 by Italian scientist Galileo Galilei (1564 - 1642). It was the earliest design for a pendulum clock. Since he was blind, Galileo described the device to his son, who drew a sketch of it. The son began construction of a prototype, but both he and Galileo died before it was completed.
My version of this escapement follows the intent for this escapment but not necessarily all the details, for example I’ve opted for at wall mount instead of a shelf mount so that I can incorporate a one second pendulum. Secondly I’ve powered it with weights while the original drawing called for a spring I think. At this time ,1637 time pieces did not have minute hands - so the great wheel has an hour hand in my adaptation.