Very fine and rare magogany 8 day-going marine chronometer with power reserve indicator. O. Dumas, circa 1851.

Very fine and rare magogany 8 day-going marine chronometer with power reserve indicator. O. Dumas, circa 1851. Precision Timekeeper with 1 Complication; O. Dumas, Successeur de Gannery, No. 126, circa 1851. Very fine and rare magogany 8 day-going marine chronometer with power reserve indicator. C. Three-body, mahogany with external brass handles, glazed upper section, the hinged lid with brass corners. Brass bowl and gimbal suspension. D. Frosted and silvered with Roman numerals, subsidiary seconds and up-and-down scale. Blued steel Breguet hands. M. Brass three-quarter plate with with main frame and sub-frame, conical pillars, fusee with chain and maintaining power, spring detent escapement, entirely fitted including the balance on a spotted finished platform, two-arm compensation balnce with cylindrical weights and timing screws, free-sprung blued steel helical balance spring with terminal curves. Signed on the dial and back plate. Dial diam. 110 mm. Dim. 18 x 17,5 x 17,5 cm.