Small Swiss pendant watch studded with diamonds Circa 1909

Gold enamel pendant watch by Longines
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A very fine and small gold enamel Swiss pendant watch studded with small diamonds, circa 1909.
The bezel and back cover of this distinctive 18-carat enamel pendant watch is ornamented with translucent blue-grey enamel over a geometrical patterned engine-turned ground. The centre is decorated with a diamond-set platinum rosette. Signed silvered dial with radial Arabic numerals, outer minutes track, and spade hands. Bridge movement, Patent Schweiz 22107 (Moteur perfectionné pour montres de poche), screw compensation balance.
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Diameter: 28 mm
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Weight: 21 g
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Signed: Longines