French platinum diamond-set lady’s pendant watch Circa 1900

Platinum, diamond-set watch with chain 
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A very fine and extremely elegant French, platinum and diamond-set, keyless lady’s pendant watch with the original platinum and diamond-set fine chain, circa 1900.
The bezel, band, winding crown and swivel suspension loop entirely set with rose-cut diamonds, the back entirely set with 75 round diamonds and a double border of rose-cut diamonds. Silver dial with Breguet numerals, outer minute track. Blued steel Breguet hands. A frosted gilt movement, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel flat balance spring, index regulator. Dial and movement signed.
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Diameter: 25 mm
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Signed: L. Leroy & Cie  Paris