Horology is the art and science of making timepieces ? clocks, sundials, watches, etc. Horology is abbreviated horol.(pr. hah-RAH-lə-jee)Examples of timepiece designs:Fran?ois de Hecq (French), Coach Watch with the Arms of Cardinal Richelieu, c. 1640, silver, gilt brass, Louvre.Paris, France, Watch: Young Louis XIV on Horseback, c. 1650, enamel, gold, diameter 2 5/16 inches (5.8 cm), Metropolitan Museum of Art, NY.Attributed to Pierre Phillipe Thomire and Sauvageot (French, 1751-1843), Clock with Vestals, 1785, marble, gilt bronze, Minneapolis Institute of Arts.