This beautiful book presents the fascinating developments in precision time keeping in England from 1720 through the 18th and 19th centuries. The work of well-known 18th century horologists, Shelton, Ellicott, Arnold, Cumming, Earnshaw and the Vulliamys, Reid and Hardy and others are included. Their technical advances in precision pendulum clocks are documented along with the evolution of the cases they were housed in, from the early Georgian style to the classic Victorian dome-topped regulators. Over 700 colour and black and white photographs and illustrations document these historically significant time regulators. They have become essential our everyday lives, aiding the industrial revolution, regulating the timetables of trains and being used by clockmakers to regulate the watches and clocks the world had come to rely on.