French Silver oval with a sundial inside the back Circa 1614

Silver full hunting verge watch
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An engraved gilt brass and silver pocket watch with a sundial inside the back, signed by Gribelin A Blois’, France, circa 1614. Engraved silver and gilded brass watch, movement signed by Gribelin, Blois, France. An early and rare, one-handed oval French pendant watch with Roman numerals. An oval, silver with fire gilt brass case, oval full plate movement with a  gut/fusee, a verge escapement, pre balance spring watch, pierced and engraved balance cock.
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Signed:  Gribelin  Blois