Swiss gold watch with pivoted detent escapement Circa 1860

Gold chronometer pocket watch
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A very interesting and very fine pocket watch chronometer with chain/fusee and very rare winding mechanism, Switzerland circa 1860. An 18 K gold, “à goutte”, engine turned, reeded, dome inscribed “CHRONOMETRE”, maker’s punch A.C, extravagant chronometer movement with very rare winding mechanism, chain/fusee, pivoted detent escapement, solid gold escape wheel, screwed gold chatons, helical hairspring, enamel dial in excellent condition, blued steel hands, in very beautiful condition.
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Diameter: 49 mm
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Weight: 112 g
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Signed: No Name