Only Online Auction

Geneva, Dec 09, 2020

LOT 50


CHF 4,000 - 8,000

EUR 3,700 - 7,400 / USD 4,400 - 8,800 / HKD 33,800 - 68,000

Sold: CHF 9,000

Very fine and rare magogany 8 day-going marine chronometer with power reserve indicator.

Grading System
Grade: AAA


Case: 3


Movement: 3**-6


Repair required, at buyer's expense

Slightly oxidized

Dial: 3-6-01


Slightly oxidized

HANDS Original

Brand Dumas, France

Model Marine Chronometer

Year Circa 1851

Movement No. 126

Material GIlt brass

Diameter 18 x 17,5 x 17,5 cm.

Caliber 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

Signature Signed on the dial and back plate


According to the serial number, this chronometer is certainly one of the first produced by Onésime Dumas as the successor of Gannery.As opposed to 8 day-going marine chronometer movements produced in England, with a large frame for the fusee and barrel and a small sub-frame for the escapement, this chronometer is remarkable for its escapement which is mounted on the platform of the sub-frame, almost isolated from the rest of the movement and, as in Breguet chronometers, it can be removed as easily as the platform escapement of a carriage clock.


The purchase price payable by a buyer will be the sum of the final bid price plus the buyer’s premium, together with any applicable sales or compensating use tax. In addition to the hammer price, the buyer’s premium is payable as follows: 25% of the hammer price on each lot.

Important notice – Special conditions Please look carefully at all the photos as they are an integral part of the description. Any defect not mentioned in the descriptions but visible on the photos will be considered as described and cannot lead to any claim. The dimensions are given as an indication and may slightly differ from the measures mentioned by the manufacturers especially for contemporary watches. The photos are not retouched. Colors may differ from reality. For timepieces, we guarantee neither the functioning nor the precision of the movement, nor the water-resistance of the case. In addition, please note that movements, parts of mechanisms or cases may be incomplete. The lots are sold “as is”, described to the best of our knowledge and cannot be returned. Once the online bid is placed by the bidder, it cannot be cancelled.