Swiss split-seconds lever chronograph stopwatch Circa 1950

Chromed split-seconds chronograph by Breguet
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A fine, rare and large Swiss chromed open faced split-seconds chronograph keyless lever stopwatch with instantaneous 30-minute register, circa 1950. Gilt-brass movement, straight-line lever escapement, fast beating monometallic balance, self-compensating Breguet balance spring, index regulator. Steel hinged cuvette. White enamel dial with painted black Arabic numerals for 0-30, 1/10th of a second track and inner red Arabic numerals for 30-60 minutes, subsidiary 30-minute register dial, original blued steel hand, gilt split-seconds hand. Polished case. Dial signed, movement numbered.
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Diameter: 65 mm
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Signed: Breguet