In 18th and 19th century London there were several watch and clockmakers from the Perigal and Duterrau families. This book describes their various firms and some of the clocks and watches that they produced, with biographical and genealogical details of the watch and clockmakers. Francis Perigal of New Bond Street watchmaker to King George III, and the firm of Perigal & Duterrau that he founded receive particular attention.