Rare, early French gilt-brass oignon verge watch Circa 1670

Oignon watch by Baltazar Martinot
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A rare and early French gilt-brass oignon verge watch, circa 1670. Gilt-finished full plate verge movement, chain fusée, Egyptian pillars, Louis XIV-style balance cock pierced and engraved with mock pendulum aperture. White enamel dial with blue Roman numerals and single hand. Hinged case engraved with grotesques design. Movement signed.
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Diameter: 58 mm
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Signed: Baltazar Martinot à Paris
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Balthazar Martinot. Paris 1637-1695. Clock-maker to Louis XIV. One of the principal Paris makers.