French miniature watch set with diamonds and rubies Circa 1870

Open faced pendant watch by Le Roy & Fils
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A French exquisite and delicate miniature pendant watch set with diamonds and rubies, with matching brooch, circa 1870.
18 carat gold case with applied gold monogram set with diamonds and rubies; white enamel dial with Roman hours, red Arabic minutes and spade hands; bridge movement, cylinder escapement and a three-arm brass balance.
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Diameter: 50 mm
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Weight: 87 g
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Signed: No name
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The Parisian company Leroy or Le Roy was founded by Bazile-Charles Leroy; in 1828 the name changed to Le Roy et Fils , when his son Louis-Charles Le Roy became a partner in the business. From 1829 on they worked as makers to the courts of the Dukes of Bourbon and Chartres.
Louis-Charles sold the company to Georges Casimir Halley des Fontaines in 1845 but the name stayed the same.
Despite a number of different owners the company name remained unchanged until the company closed in 1980. Le Roy et Fils are renowned for their high quality pocket watches and marine chronometer.