Marine chronometer en forme de tabatire made in Louis Berthoud's workshop after his death, under the direction of Henri Motel. Berthoud Frres, circa 1818.

Marine chronometer en forme de tabatire made in Louis Berthoud's workshop after his death, under the direction of Henri Motel. Berthoud Frres, circa 1818. Precision Timekeeper; Berthoud Freres, No. 215, circa 1818. Rare marine chronometer en forme de tabatire made in Louis Berthoud's workshop after his death, under the direction of Henri Motel. C. Two-body mahogany box with slide on the lid over the glazed observation aperture. Brass gimbal with a leaded bowl lined with velvet. Brass case en forme de tabatire. D. Silvered regulator type, with small Roman chapter for hours, subsidiary seconds below, outer Arabic minute ring on the border of the bezel. Blued steel Breguet hands. M. Frosted and gilt, full plate, fully jeweled, with conical pillars secured by nuts with washers. Fusee with chain, maintaining power, Louis Berthoud type pivoed detent escapement, three-arm compensation balance, with three wedged weights and timing screws, blued steel conical balance spring. Signed on the dial, the back plate and the dial rim. Dial diam. 80 mm.