George Graham, 1673-1751, was the son of a Quaker farmer from Cumberland. Whilst apprenticed to Henry Aske, 1688-95, he established a considerable name for himself and very soon afterwards began working for Thomas Tompion (1631-1713). In 1704 he married Tompion's niece Elizabeth and took over the company on Tompion's death.
Graham was reponsible for all manner of horological and scientific inventions such as the deadbeat escapement in 1715, the mercury pendulum in 1726 and the cylinder escapement for watches. All three inventions were still being used right up until the end of the 19th
The present clock is an interesting example being a timepiece rather than a two train clock. There are few known examples of Graham's timepieces, making them rarer - but still cheaper - than his striking clocks.