Swiss rare 18K pink gold open faced keyless watch Circa 1890

Rare pink gold open faced keyless watch
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A Swiss rare pink gold open faced keyless watch made in 1890, retailed by Henry Bohm Denver, jewelled manual winding lever movement, cut bimetallic compensation balance, wolf’s tooth winding mechanism, 18k pink gold cuvette.
Gilt dial, stylized numerals, outer minute track, Louis XV hands • 18k pink gold polished case, case and movement signed.
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Diameter: 46 mm
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Signed:  Patek Philippe & Cie
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With an Extract from the Archives confirming sale in 1890.