The Longitude at the Eve of the Third...

Geneva, Hotel Des Bergues, Oct 23, 1999

LOT 35

Dumas, Elève du Gouvernement, No. 24, circa 1840.Very fine and one of the extremely rare examples of mahogany, marine chronometer made under the control of Henri Motel.

CHF 45,000 - 50,000

C. Double body mahogany box with slide on the lid over the observation aperture. Brass bowl and gimballed suspension, locking bolt on the edge.D. Silvered with Roman numerals and subsidiary seconds. Blued steel Breguet hands. M. Brass, "fausses côtes" finished, Motel calibre the fusee with maintaining power and the barrel secured by a single bridge, the escapement mounted on a separated plate, Louis Berthoud type pivoted detent escapement, four-arm compensation balance with four weights, poising and timing screws, blued steel conical balance spring.Signed on the dial and movement.Dial diam. 82 mm.Dim. 14 x 16 x 16 cm.


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Grading System
Grade:
Case: 3

Good
Movement: * 4 - 6
Dial: 3 - 01

Notes

This chronometer is identical to the ultimate development of the chronometers produced by Henri Motel. It is almost certainly one of the ultimate ever made by Dumas with the Motel calibre, the chronometer No. 27, being already made with his own calibre (see following lot).