Probably unique Swiss rose gold lever watch Circa 1916

Rose gold full hunter by Patek Philippe
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A unique Swiss 14 carat rose gold hunting cased ankerchronometer pocket watch, circa 1916.  Unique ankerchronometer movement with skeletonized and engraved bridges, fine adjusting device, moustache lever. White enamel dial with Arabic hours and outer minute divisions, subsidiary seconds, blued steel hands. Plain case with Patek Philippe punches in all 3 lids. Dial signed, case numbered, cuvette and movement signed and numbered. Comes with an Extract from the Archives and original certificate.
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Diameter: 54 mm
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Weight: 115 g
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Signed: Patek, Philippe & Cie
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This watch is a museum piece and probably a ‘Piece Unique’. As the movement engraving is not mentioned in the Extract from the Archives, it is assumed that it is a custom work of the owner. The watch was part of a very high-quality German collection of precision pocket watches and was sold for the first time in the 145th auction of Cortrie for circa € 14,200.