97,750 CHF
Ferdinand Berthoud, à Paris, No. 276, bearing the Paris hallmarks for 1758 - 1759. Extremely fine and unique, 20 ct. varicoloured gold, Montre à secondes qui va huit jours sans remonter, dont le régulateur est formé par deux balanciers qui font un battement à chaque seconde, constructed on the principle described in Ferdinand Berthoud: Essai sur l'Horlogerie, published in 1786, pages 216 to 221, plate No. XXVII, fig, 6-7-8-9 and 10. Double body, Louis XV, by Horace Benedict Pasteur (Master Mark) the bezels chased with rocaille and foliage decoration, the back chased with with flowers and four coloured gold gardening throphies. White enamel by F.R. Vincent (signed on the enamel backing) with Roman numerals, outer Arabic minute ring and subsidiary seconds. Gold Louis XV hands. Hinged gilt brass full plate with column pillars, fusee with chair, large 60 teeth brass wheel escapement with two plain polished steel balances geared together, single flat balance spring, large single gilt brass continental cock with a polished steel end-piece for each balance stopped at will by means of a lever on the dial plate. Signed on the dial and back plate. In very good condition. Diam. 48 mm. Notes This watch appears to be unique without repeating work in Ferdinand Berthoud's work, the only other watch of this type known to exist was sold by Antiquorum on 14 November 1993, lot 84 of L'Art de l'Horlogerie en France. Slightly later, this watch was in a gold and enamel case and fitted wi
Auctioneer:
Antiquorum
Date:
1995-04-22
