Rare Swiss iron open faced World Time watch Circa 1890

Iron lever World Time watch
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A rare and extravagant Swiss iron open faced World Time lever pocket watch, circa 1890. The case back is engraved with a nobleman’s escutcheon and crown, gold hinge. Swiss lever movement. Original white enamel dial with six different indications of time: Paris, Berlin, Amsterdam, New York, Bombay and Greenwich marked in red as the main time, subsidiary seconds at 6 o’clock, signed Déposé No. 4975.
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Diameter: 52 mm
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Weight: 113 g
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Signed: No name
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The former property of a nobleman.