German Glashütte key wind pocket watch Circa 1854

Gentleman’s early and important Glashütte keywind pocket watch
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An important Glashütte keywind pocket watch with pin-pallet escapement from A. Lange’s experimental period.
Bridge movement, screw compensation balance and an 18K gold case and an enamel dial. Circa 1854/1855
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Diameter: 43 mm
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Weight: 55 g
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Signed: Lange & Co  Glashütte
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 This is one of the rare pieces that illustrate the technical and historical development of watchmaking in Glashütte. Movement and case number 1092 by A. Lange & Cie. refer to the year of production around 1854/1855, the ebauche, however, was probably made around 1849. The brass lever that was used here is still the long version and the wheel is made of polished steel. The compensation balance has two adjustment screws. The whole escapement construction is still in an early stage that would develop into a 2/3 plate with the gold escapement only a few years later.