French fine and unusual oval silver verge watch Circa 1790

Unusual oval silver verge watch with date
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A French fine and unusual oval silver verge watch with an exceptional pierced and engraved full plate skeletonized movement with date, circa 1790, gilt full plate skeletonised cylinder movement, pierced and engraved balance cock figuring all the letters of the manufacturer.
White enamel dial Arabic numerals, inner track for date indication, outer Arabic minute track, silver case with glazed back and fluted band, dial and movement signed Glaesner à Lyon
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Diameter: 54 mm