Swiss gold miniature cylinder pendant watch Circa 1800

Gold hunting cased miniature watch
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A fine and rare Swiss, miniature, 18K gold huntingcased pendant watch with front-mounted balance wheel and unusual escapement by Roulet à Genève, circa 1800. White enamel, small, eccentric dial with Breguet numerals, outer minute track, balance wheel mounted below with a two-footed cock and faceted red endstone, foliate engraved gold dial mask. Blued steel Cathedrale hands.

Gilt, full-plate movement, cylindrical pillars with chased capitals, modified cylinder type escapement with flat brass escape-wheel, three-arm steel balance, flat balance spring. Movement signed.
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Diameter: 30 mm
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Signed: Roulet  Genève
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The escapement of the present watch is similar to the traditional cylinder escapement in that it has a curved, hollowed-out balance staff. However, the escape wheel has flat teeth rather than raised teeth and is reminiscent of Paul Garnier’s later invention the chaffcutter escapement.