French 18k gold quarter repeating cylinder watch Circa 1830

A French quarter repeating cylinder in a gold open faced case, circa 1830. Keywind gilt bar movement with suspended going barrel. Plain cock with polished steel parachute suspension, blue steel regulator with bimetallic temperature compensation. Plain three arm gilt balance with blue steel spiral hairspring. Push quarter repeating on two polished steel gongs. Engine turned silver dial, Roman numerals, blued steel Breguet hands. Engine turned gold open faced case with engine turned middle. Gold repeating push in the pendant which is pulled out and twisted a quarter of a turn before use. Wound through the signed and numbered nr. 29 gold cuvette.
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Diameter: 57 mm
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Weight: 97.5 g
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Signed: Debrou à Paris
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Kerin Debrou, Paris. Rue Neuve Saint- Eustache, 1830. Young Debrou, 1840-50.
Some not disturbing very tiny dents at the back, overall in very good condition.
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Reference 020000