9,200 CHF
Dumas, Successeur de Gannery, à St. Nicolas Près Dieppe, No. 442, circa 1860.Fine 49 hour going mahogany marine chronometer with power reserve indicator. Three body mahogany box with external handles, glazed upper section the hinged lid with brass corners. Brass bowl and gimballed suspension. Silvered with Roman numerals, outer minute ring subsidiary seconds and Up-and-Down sector. Gilt brass Breguet hands. Brass full plate with cylindrical pillars secured by screws, fusee with maintaining power, Earnshaw type spring detent escapement, two-arm compensation balance with cylindrical weights and timing screws, free sprung blued steel helical balance spring.Signed on the dial and mahogany box.Dial diam. 80 mm.Dim. 16,5 x 16,5 x 17,5 cm. Notes This chronometer is a good example of the ultimate development of the Dumas calibre.Henri Motel, (1786-1859). The best known of Berthoud's pupils, Jean-François Henri Motel, was born at Margny-les-Compiegne on 31 December 1786. His father, Louis Nicolas Motel, was both tavern-keeper and farmer. After his preliminary studies, Motel went in 1794 to Prytanée and then to the Ecole des Arts et Métiers at Chalons where he remained as a pensionnaire from year XI until 1 Vendémiaire An XIV (1806) at which date he obtained the qualification of Aspirant by ministerial decision. 7 March 106 he was selected to go to Paris to be instructed at the expense of the government in the art of horology by Louis Berthoud, horloger de la Marine, in accord w
Auctioneer:
Antiquorum
Date:
1999-10-23
