Rare French silver pair cased astronimical verge Circa 1720

Silver astronomical watch by Hubert Jr.
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A fine and rare French silver pair cased astronomical verge watch, circa 1720. Gilt verge movement, chased, engraved and pierced balance cock, pierced Egyptian pillars. Chased silver dial with engraved and blackened arched Roman VI-VI hour sector, outer plain cartouches with engraved and blackened Arabic five minute divisions, single brass hand, arched aperture to the center with rotating silver disc with sun, moon and stars on a blue background, the lower half of the dial with aperture for date surrounded by an engraved and blackened scroll and foliage decoration. Plain inner and outer cases, both cases stamped with casemaker’s initials ‘HI’. Dial signed.
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Diameter: 59 mm
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Signed: Hubert Junior