Swiss gold quarter repeating special lever watch Circa 1830

Gold  pocket watch with special escapement
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A very fine and rare Swiss quarter repeating 18 carat gold pocket watch with special escapement, circa 1830. Gilt, 12 jewels movement with standing barrel, gold wheel train, special polished steel lateral lever escapement with an elongated lever arm, the fork engaging a locking pin on the balance pivot, bimetallic compensation balance, blued steel flat balance spring, index regulator, repeating with two massive polished steel hammers on two gongs activated by a pull-and-twist button in the pendant, polished steel repeating work under the dial. Engine turned case, cast and chased flower and scroll borders, pendant and bow, rope-twist band. Hinged gold engine turned cuvette. White enamel dial with radial Roman numerals, outer minute divisions, and the centre acid etched with foliate scrolls. Gold arrow hands. Cuvette signed.
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Diameter: 58 mm
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Signed: Pere Bouhelier Swiss
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This very fine and interesting watch is made to the highest standards. The escapement is a lateral lever with an elongated fork, the escape wheel has teeth with only a slight angle. The balance has blued steel applied to its upper surface.