Large French sterling silver and gold chronograph Circa 1900

Keyless lever chronograph by L. Leroy & Cie
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A very fine, rare and large French sterling silver and gold open faced chronograph keyless lever pocket watch, circa 1900. Gilt brass movement, 21 jewels, straight-line lever escapement, cut bimetallic compensation balance with Breguet palladium balance spring. Silver hinged cuvette, pink gold hinges, lips, bow and setting pin collar. White enamel dial with Roman numerals, outer minute divisions and 1/5th second chronograph track, sunk subsidiary seconds and original rose gold spade hands. Solid case, polished. Dial, case and movement signed.
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Diameter: 61 mm
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Thickness: 19 mm
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Signed: L. Leroy et Cie Horlogers de la Marine 7 Bd. de la Madeleine Paris Ancien ‘t 13-15 Palais Royal