Unusual white gold, jade, diamond set square lever Circa 1925

Attractive square pendant watch
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An unusual and attractive Swiss 18 carat white gold, jade and diamond set square pendant watch, circa 1925. Nickel finished lever movement stamped twice with the Geneva seal, 17 jewels.  Silvered dial with Arabic numerals, blued steel hands and outer railway minute divisions. Square jade case with canted corners, diamond set bezel and bow, back engraved with Chinese scripture ‘Long Spring’, crown at six o’clock. Movement numbered.
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Width: 39 mm
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Signed: No name