$48,300
Louis Berthoud No. 2370, Montre a secondes Garde Temps, vendue a Monsieur de Radzivill, with Paris hallmarks for 1789. Very fine and rare 18K gold early pocket chronometer. C. Three body Three body "a double fond", by Joly No. 115, polished with concealed hinges. Brass full plate, spotted finished with conical pillars, fusee with chain and maintaining poxer, typical Louis Berthoud pivoted detent escapement, four-arm compensation balance with riveted bimetallic rim, trapezoidal weights with gold poising and timing screws, free sprung blued steel helical balance spring and ruby end-stone. Signed on the dial and back plate. Diam. 61 mm. Notes Recorded in Jean-Claude Sabrier: La Longitude en Met cr. 1'H-Ire de Lotus Berthoud et Henn Motel, Antiquornm Editions, Geneve 1993, p. 392. This newly discovered watch is typical of the early type of Louis Berthoud pocket chronometers. The shape of the balance bridge with two unemployed pivoting holes, reveals that, as most of the early chronometers produced by Louis Berthoud before 1792, this watch was originally fitted with antifriction rollers subsequently replaced by a ruby end-stone. This watch appears for the first time in the records in the register Ouvrages ((mantles (the order book) in December 1789. It was subsequently recorded by Louis Berthoud under the No. 2370 in the Lime dEtablis.senaent, common to Ferdinand and Louis Berthoud. This watch does not appear in the Registre des Montres Marines and therefore does not carr Read more…
Auctioneer:
Antiquorum
Date:
1998-06-20
