Swiss 18K gold hunting cased lever pocket watch Circa 1880

Gold anker chronometer
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A very fine Swiss 18 carat gold hunting cased anker chronometer, circa 1880. Bridge movement, an ébauche by Piguet Frères, a piston tooth lever escapement and gold screw compensation balance. White enamel dial with Roman hours, an outer minute track, sunk subsidiary seconds at 6 o’clock and moon hands. An engine turned case with maker’s mark FDB. Dial signed, case numbered, movement signed and numbered.
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Diameter: 53 mm
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Weight: 138 g
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Signed: Fréderic Sagne Chaux-de-Fonds Suisse