Impressive Austrian verge watch with three cases Circa 1780

Pocket watch with tortoise outer shell
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An impressive verge watch with three cases, made by Joseph Niggl in Salzburg, Austria, circa 1780. This open faced watch has three cases of which the two inner ones are crafted from silver and the outer case is crafted from silver and brass and has a tortoise shell. The inner case is engraved with the master’s mark IS and a crown. The white enamel dial has Roman hour numerals and gold plated hands. The extremely unusual full plate movement has a verge escapement, a silver decoration, a silver dust protection ring and a balance bridge in the shape of the Austrian double headed eagle.
Movement signed.
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Diameter: 67 mm
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Weight: 200 g
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Signed: Joseph Niggl
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Joseph Niggl
Joseph Niggl, probably apprenticed in Friedberg, was a renowned 18^th century watchmaker from Salzburg, Austria, known for his innovative designs, complex mechanisms, and intricate timepieces. His highly accurate marine chronometers played a vital role in navigation, enabling sailors to chart their courses more accurately. Niggl’s legacy as a watchmaker continues to inspire contemporary watchmakers, cementing his place in history as one of the most influential figures in the field.