French silvered chronometer marine deck watch Circa 1828

Brass marine chronometer with eccentric dial
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A very fine and important French deck watch, mahogany and silvered brass cased two day marine chronometer with an eccentric dial, differential winding and ratchet key, circa 1828. Accompanied by a Breguet certificate. A mahogany box with a sliding observation panel in the lid, silvered brass handles and fittings, movement mounted in a cylindrical silvered brass bowl and suspended within oval gimbals with an original locking system. Matte silvered dial, eccentric, signed Breguet et Fils, radial Roman numerals and outer dot minute markers, symmetrically positioned subsidiary seconds dial, winding aperture at the top with dust cap. Blued steel Breguet hands.

A Brass movement, twin barrels with wolf’s toothed differential winding mechanism above, train under the dial, a navette shaped platform with Earnshaw’s spring detent escapement, cut bi metallic, free sprung compensation balance with peripheral adjustment screws for temperature and timing, top pivot with a parachute, blued steel helical balance spring without terminal curves and lower stud adjustable horizontally and vertically, balance locking slide accessed from beneath the bowl.
Dial signed and numbered, case numbered.
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Diameter: 106 mm
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Dimensions box: 210 x 107 x 109 mm
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Signed: Breguet et Fils
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Envoyée a Ducom by Breguet et Fils, Horloge Marine à deux Barillets, Petit Modèle, sold to Monsieur Ducom on June 28, 1828, for 2,200 francs.
This instrument is certainly amongst the most refined examples of the double barrel marine chronometer as made by Breguet. The winding is accomplished by a single square through the dial, both barrels being wound simultaneously the intermediate and barrel arbour wheels all having wolf’s teeth.