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ONÉSIME DUMAS NO. 126, CIRCA 1855
Details
A Louis Philippe Eight-Day marine chronometer
Onésime Dumas No. 126, circa 1855
The frosted silver dial signed O Dumas Sr de Gannery No. 126 Roman hour numerals, Breguet blued steel hour and minute hands, subsidiary seconds dial with blued steel hands, up-and-down dial with yellow metal hand, main frame assembly signed Dumas No. 126 carrying reversed fusee barrel and centre wheel, semi-rectangular shaped sub-frame assembly carrying the remainder of the train and Earnshaw escapement, cut bimetallic balance with brass cylindrical heat compensation weights with top mounted adjustment screws, blued steel helical balance spring, strip steel spring detent with jewelled locking stone mounted on side of banking block, brass bowl and gimbal with bolt action locking arm, three-tier mahogany box, the top-lid with brass corners and inset rectangular brass plaque, the middle section with inset mother-of-pearl disc, the bottom with plinth base and with double action lock, external brass drop handles, winding key numbered 126.
107 mm dial diam., Box 180 mm sq.
107 mm dial diam., Box 180 mm sq. (2)
Onésime Dumas No. 126, circa 1855
The frosted silver dial signed O Dumas Sr de Gannery No. 126 Roman hour numerals, Breguet blued steel hour and minute hands, subsidiary seconds dial with blued steel hands, up-and-down dial with yellow metal hand, main frame assembly signed Dumas No. 126 carrying reversed fusee barrel and centre wheel, semi-rectangular shaped sub-frame assembly carrying the remainder of the train and Earnshaw escapement, cut bimetallic balance with brass cylindrical heat compensation weights with top mounted adjustment screws, blued steel helical balance spring, strip steel spring detent with jewelled locking stone mounted on side of banking block, brass bowl and gimbal with bolt action locking arm, three-tier mahogany box, the top-lid with brass corners and inset rectangular brass plaque, the middle section with inset mother-of-pearl disc, the bottom with plinth base and with double action lock, external brass drop handles, winding key numbered 126.
107 mm dial diam., Box 180 mm sq.
107 mm dial diam., Box 180 mm sq. (2)