English sterling silver split second chronograph Circa 1915

Sterling silver split second chronograph
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A fine and rare English sterling silver hunting cased split second chronograph lever pocket watch, circa 1920s. A Swiss-made lever movement. White enamel dial with Roman hours, Arabic five-minute numerals, sunk subsidiary seconds at 9 o’clock and 30-minute counter at 3. Plain case. Dial numbered and signed Smith & Son Ltd Trafalgar SQe London Class “A” N.P.L. Certificated 79.5 Marks, case numbered, movement signed and numbered.
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Diameter: 53 mm
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Signed: Smith & Son Ltd Trafalgar SQe London