French gold watch with jumping centre seconds Circa 1790

Gentleman’s watch with lever escapement
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A gentleman’s rare, early pocket watch with jumping centre seconds, calendar and seconds swing lever escapement type II according to Pouzait, circa 1790, 18k gold case, polished, tiered, case maker’s punch mark “FCF”. Enamel dial, eccentric radial Roman hour indicator at “6”, centre seconds, day at “10”, date at “1”, signed, gold hands. Full plate movement, keywind, signed, frosted, gilt, chain/fusee, solid pillars, lever escapement according to Pouzait, oversized four-arm brass balance, blued balance spring, large pierced and engraved balance cock.
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Diameter: 59 mm
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Weight: 118 g
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Signed:  Marchand Fils à Paris