French gold Pouzait type stoppable lever watch Circa 1795

Gold gentleman’s pocket watch by Berthoud Père & fils
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A fine French gentleman’s pocket watch with jumping, stoppable centre seconds and Pouzait lever escapement, circa 1795.
18 Carat rose gold case, glazed on both sides, with seconds stop lever at 3 and small wheel for hand setting at 4. Enamel dial with radial Roman hours, centre seconds, and gold spade hands. Keywind, firegilt, florally engraved full plate movement, sector-shaped, skeletonized, signed on the movement band; with studded precious stones on the large five-arm impeller-shaped balance, florally engraved balance cock, brass escape wheel with 12 half-cylindrical vertical pins, and chatoned diamond endstone on balance.
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Diameter: 54 mm
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Weight: 104 g
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Signed: Berthoud Père & fils à Fleurier
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Berthoud Père
Berthoud père was Jean-Jaques Henri Berthoud (1736-1811). He trained his five sons to be watchmakers; the brand, Berthoud père & fils, however, only existed for about half a century – from mid 18th century to the early19th century, because the four brothers of Jean-Louis Berthoud soon abandoned watchmaking in favour of other professions. None of the five brothers descendants ever took up watchmaking as a profession.
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Jean-Moïse Pouzait (1743 – 1793)
He was born in Geneva. He was the head of the first school of Horology in Geneva and invented the independent dead seconds watch in 1776. In 1786 he improved the anchor escapement.