Swiss 14K yellow gold minute repeating pocket watch Circa 1900

Gold keyless open faced lever
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A Swiss 14 carat yellow gold minute repeating keyless pocket watch, circa 1900. A solid, polished case, case back with engraved monogram, gold hinged cuvette. White enamel dial with painted radial Arabic indexes, outer minute divisions with red Arabic numerals, subsidiary sunk seconds dial and blued steel spade hands. Nickel-plated movement, 27 jewels, straight-line lever escapement, main rubies with gold screwed chatons, cut bimetallic compensation balance, blued steel Breguet balance spring, swan neck micrometre regulator, repeating on gongs by activating slide on the band. Dial and movement signed, case numbered.
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Diameter: 48 mm
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Thickness: 14 mm
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Signed: C.L. Guinand  Swiss
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Guinand(c. 1810-1879). Guinand was an important Master Horologist from Le Locle, who, along with Auguste Grether from Ponts-de-Martel (1817-1879), specialized in the production of tourbillon carriages. According to the records of the Neuchatel Observatory, Guinand’s production of tourbillons began between 1865 and 1867. He designed three models of Tourbillon carriages, always based on an A-shaped frame. He worked for several important makers, including Girard-Perregaux and Montandon. Most of Guinand’s carriages were equipped with a pivoted detent escapement, one with a spring detent and some with a lever escapement. Most of his carriages were not signed and can only be identified by their characteristic A-shape. In 1864 Patek Philippe chose him to build their first tourbillon regulator.