German niëllo silver grande/petite sonnerie repeater Circa 1825

Niëllo silver repeater with Grande and Petite sonnerie by Johan Georg Messy
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A large, heavy German niëllo silver open faced quarter repeating Grande et Petite sonnerie pocket watch, circa 1825. Highly complicated gilt, grained full plate movement with 1/4 repeater, cylinder escapement, unusual, curved and decorated bridges, two hammers, two gongs, two barrels, visible, complicated mechanism with polished steel parts, three armed steel balance, exceptional fine regulation by a kidney shaped scale. White enamel dial with Roman numerals and Arabic minutes and blued Louis XV hands. Case decorated to the back with mythical creatures and foliage. Gilt signed cuvette.
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Diameter: 65 mm
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Weight: 200 g
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Signed: JG Messy in Freyburg Fecit
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Johan Georg Messy watchmaker, Freiburg (im Breisgau).
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Literature: Jürgen Abeler ‘Masters of watchmaking’ 2nd edition 2010.