The famous Eastgate Clock in Chester. Built with JB Joyce clock work mechanism in 1899. Converted to electrical mechanism in 1992.
The original mechanism is described as a "pin wheel deadbeat (escapement) timepiece" with four 4ft 6" illuminated dials, probably gas lit. There was some speculation when it was built about its timekeeping abilities as most people thought it must be spring driven as the weights could not be seen. They were however cleverly installed within the tower but out of sight (and reach) of pedestrians.