French gold quater repeating lever pocket watch Circa 1850

Gold open faced pocket watch
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Very fine French pocket watch repeater, special quality, from nobleman’s possession by royal watchmaker Le Roy & Fils, circa 1850. An 18 carat gold, engine-turned, reeded, à goutte, monogram of a count with a motto “Esse Quam Videri” on the back, dome signed and numbered, very flat caliber, repeating hours and quarters, high-quality gear and special golden screwed balance, lever escapement, winding by key with (defect shaft), enamel dial, roman numerals, fine steel hands (one hand replaced), very fine collector’s watch.
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Diameter: 45 mm
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Weight: 63 g
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Signed: Le Roy & Fils Paris