Swiss gunmetal lever chronograph with register Circa 1910

Gunmetal open faced keyless chronograph by Hermès
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A fine Swiss gunmetal open faced chronograph keyless lever pocket watch with register, circa 1910. Matte gilt movement, 19 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, steel chronograph work on the backplate. Hinged gun-metal cuvette. White enamel dial with dauphine numerals, outer minute track with fifths of a second divisions and Arabic five-second numerals, subsidiary seconds and 30-minute register, original gold spade hands. Matte case. Dial signed, case numbered.
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Diameter: 52 mm
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Signed: Hermès Swiss