Ferdinand Berthou, born in Switzerland in 1727, came to Paris in 1747 and produced clocks with cases often made by Gouthières. Another well known manufacturer was Abraham-Louis Bréguet, also born in Switzerland in 1747 who invented clocks with compensating spirals or with stunningly modernistic mechanisms such as a perpetual movement or minute repeating, lunar phases and free escapement pieces. The Bréguet firm is still in activity today and remains much famous for its very high quality watches.
«A Large Empire ormolu mounted mahogany
clock and pedestal, signed on the dial Bréguet
in co-operation with the enameller Dubuisson,
the case by Denière, circa 1810
(Value : US $ 100,000-130,000)»
Salomon Chesnon, born in Blois in 1572, produced a repeating clock for Queen Marie de Medicis in 1618. His pieces are nowadays quite rare.
Julien Coudray, born in Blois in 1498, was clock-maker to the King. He produced in 1525 an astronomical clock for the cathedral of Tours that indicated the hours, the days of the week, the months, lunar phases, festivals, the name of each day of the week and other special features such as a procession of small figures which were coming out from a door and entering through another as well as a striking device by which two angels would strike the hours alternatively.