Swiss lever with triple calendar and moon phases Circa 1900

Rose gold astronomical watch
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A rare Swiss 18 carat rose gold open faced gentlemen’s pocket watch with triple calendar and moon phases, circa 1900. The movement with a lever escapement. White enamel dial with Arabic hours, an outer minute track with Arabic 24 hour numerals, subsidiary seconds with concentric phases of the moon at 6 o’clock, the date at 12, two central apertures for digital indication of the days of the week and months, blued heavy moon hands. A plain case. Case and movement numbered.
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Diameter: 50 mm
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Weight: 89 g
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Signed: No name