French silver quarter repeater with Sully escapement Circa 1780

Unique watch that combines Sully escapement with striking mechanism
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A rare early quarter repeating pocket watch with Sully type frictional rest escapement. This probably is the only existing pocket watch that combines a Sully type escapement with a striking mechanism, circa 1780. Silver case, polished, large lateral hinge. Enamel dial, Roman hours, gold “Poker & Beetle” hands. Fine full plate movement, keywind, regilt, chain/fusee, moulded movement pillars, Sully type frictional rest escapement with vertical escape wheel, three arm brass balance, blued balance spring, very nely orally engraved, pierced balance cock.
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Diameter: 61 mm
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Weight: 157 g
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Signed: Coutterez à Lyon
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