Heavy Swiss 18K gold ring set with miniature watch Circa 1860

Gold miniature seal ring watch by Henry Capt
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A very fine and extremely rare, heavy Swiss 18 carat gold ring set with a miniature watch, circa 1860. Matte gilt movement, Ø 13 mm, bar calibre, ten jewels, cylinder escapement, plain three-arm balance, flat balance spring, index regulator. White enamel dial with Roman hours, an outer minute track and blued steel Breguet hands. A matte shank and polished bezel with two screws, a concealed sliding panel opening for winding and hand-setting, an inner snap-on back, a crystal intaglio engraved with a crest beneath a crown for use as a seal. Dial and inner case signed, movement numbered. Comes with a Hess & Metford (Genève) presentation box.
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Diameter: 17.5 mm
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Inner ring: 19 mm
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Signed: Henry Capt Genève
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Henry-Daniel Capt was an independent Swiss watchmaker who specialized in watches with additional complications such as musical watches and automatons. Capt was one of the first in Geneva to use barrels and crowns in his automatons. He was born in Chenit in the Vallée de Joux in April 1773, as the son of Jaques Samuel Capt and Susanne Piguet. His brother was Charles Samuel Capt. On January 1st, 1796, he married Henriette Piguet. In the Vallée de Joux, Capt trained as an établisseur. Around 1789, Henry settled in Geneva and worked for renowned companies such as Jaquet-Droz, Godet, Leschot and his brother-in-law Daniel Isaac Piguet. In 1802 he went into partnership with Daniel Isaac Piguet, which lasted until 1811. When this partnership ended, Capt kept producing his pieces before entering another partnership with Aubert et Fils in 1830 as Aubert & Capt, located in Place Bel-Air, Geneva. The firm was taken over by his son, Henry Capt, in 1844. He opened a shop on the Rue du Rhône in 1855, which quickly gained an excellent reputation. During the 1870s, the Henry Capt company advertised that they were the only Geneva watch manufacturer to have a branch retail house in London. He also established branches in Paris, Nice and New York. The house of Henry Capt flourished for many decades. Henry-Daniel Capt died in 1841.