Swiss silver astronomical watch with duplex escapement Circa 1865

Silver astronomic with perpetual calendar and moon phases
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A fine and very early Swiss, astronomic, silver and gold pocket watch with perpetual calendar and duplex escapement, circa 1865. A polished case, gold hinge, the back cover with engraved monogram. Gilt cuvette. White enamel dial with radial Roman numerals, outer minute track, subsidiary dials for the months, days of the week, date in red concentric with seconds, aperture at 12 for the moon phases. Blued steel Breguet hands. A frosted gilt movement, bar calibre, 14 jewels, duplex escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator.
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Diameter: 52 mm
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Signed: No Name
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This watch is the early type of perpetual calendar with the distinctive early-type dial layout. Watches of this type were exhibited at the 1867 Paris Exhibition.