Rare Danish silver open faced cylinder pocket watch Circa 1803

Silver precision watch by Larpent & Jürgensen
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A rare Danish silver open faced cylinder precision pocket watch, circa 1803. Full plate movement, cylinder escapement, key wind, large barrel, three-arm brass balance. White enamel regulator dial, in the upper half the time indication with radial Roman hours and an outer minute track with Arabic five-minute numerals, in the lower half the subsidiary seconds. A polished case. Dial signed, movement signed and numbered.
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Diameter: 57 mm
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Weight: 137 g
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Signed: Larpent & Jürgensen København
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Jürgen Jürgensen, 1745-1811, was the father of the renowned watchmaker Urban Jürgensen. In 1775, he started a watchmaking factory in Copenhagen and went into partnership with Isaac Larpent in 1780. Since then the company operated from Roskilde under the name Larpent & Jürgensen.