2,760 CHF
Attributed to Albert Bertholet and Louis Burry-Haldi, Bienne, Swiss, No. 6763, circa 1890.Fine silver cane handle fitted with a patented keyless concealed watch. ., the top rotates, winding the watch. D. White enamel, radial Arabic numerals, outer minute ring with five-minute Arabic markers. Black painted "spade" hands. M. 33 mm, brass, 3/4 plate, cylinder escapement, three-arm plain brass balance with White enamel, radial Arabic numerals, outer minute ring with five-minute Arabic markers. Black painted "spade" hands. 33 mm, brass, 3/4 plate, cylinder escapement, three-arm plain brass balance with flat balance-spring, winding by rotating bezel,etting with a small know mounted on the extension of the minute hand arbor.Dim. Height 43 mm, cap diam. 39 mm. Notes The winding mechanism was patented by Albert Bertholet and Louis Burry-Haldi, both of Bienne, Switzerland, on January 14, 1889.
Auctioneer:
Antiquorum
Date:
2001-10-13
