Jean Baptiste BAILLON in Paris. Yellow gold guilloche GOUSSET WATCH, the enameled dial with double numbering of the hours and minutes. Rooster movement, verge escapement, mechanism signed and numbered 603. 18th century, probably circa 1750. Gross weight 77.4 g. A gold guilloche KEY and a hand KEY are included. Jean-Baptiste Baillon (1727-1772), watchmaker to Queen Marie Leczinska in 1751, became watchmaker to the dauphine Marie-Antoinette.

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