Georges-Adrien Merlet, 1754-c.1802. The son of a grocer, Merlet was one of the three best known enamelers in Paris duing the latter half of the 18th century. The other two better known enamelers were Jean Coteau (1739-1812) and Gobin Etienne, known as Dubuisson. The latter is listed as working in Sèvres in about 1756, painting flowers, watch cases and dials.
Merlet's name appears on relatively few clocks but judging by the high quality enameling on the present clock he is certainly deserving of more research.