Swiss gold and enamel extra flat pocket watch Circa 1830

Gold watch with female square cylinder escapement
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A Swiss 18K gold and white champleve enamel extra flat pocket watch, circa 1830.
The case with reeded band, the bezels with chased floral decoration, the back engine-turned and engraved with a scene depicting a lady and a child in a landscape, and further engraved and black and white champleve enamelled decoration and hinged gold cuvette with engine-turned border. Silver, florally engraved dial, with radial Roman numerals, outer minute divisions and gold Breguet hands. A gilt brass movement, bar calibre, eight jewels, gold wheel train, the going barrel with a female square, cylinder escapement with plain gilt brass three armed balance, index regulator. Cuvette signed.
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Diameter: 46 mm
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Signed: Courvoisier Frères  Chaux-de-Fonds
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The case is slightly chipped and the dial is oxidized.