Tompion invents the cylinder escapement The cylinder escapement, which allowed for the making of a thinner watch, was invented by Thomas Tompion in 1695 and later perfected for use in watches by his protege George Graham in 1726. For an example, see the Gold Cylinder Watch by Graham, which is hallmarked 1733. Image Credit Diagram of a cylinder escapement from "Tidens naturlære" (Nature of Time) 1903 by Poul la Cour, Ill. 27. Morten Bisgaard, Public domain, via Wikimedia Commons
