Swiss chronograph with register and tachymeter scale Circa 1900

Gold open faced keyless lever watch by Longines
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A Swiss gold open faced keyless lever chronograph watch with vertical register and tachymeter scale, retailed by Herpy Arnold, Budapest, circa 1900. The watch features a gilded lever movement and a steel chronograph mechanism that is partially visible on the backplate. It also includes a cut and compensated bimetallic balance and is numbered 1242750 under the dial. The white enamel dial is signed by Herpy Arnold Budapest and has Roman numerals, a running seconds subdial at VI o’clock, and a 30 minute recording subdial at XII o’clock. Additionally, it has a red outer tachymeter scale and a blued steel chronograph hand. The watch is housed in an engine turned gold case with a gold cuvette, numbered 1094727.
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Diameter: 51 mm
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Signed: Herpy Arnold Budapest
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The watch case exhibits signs of wear, with the engine turning almost entirely worn away. The dial is in good condition with no visible cracks or damage. The watch appears to run when wound, but the chronograph button does not seem to function correctly.
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Gyula Herpy, a successful retailer from Budapest, started his business in 1817 by importing and selling Swiss clocks and watches to Hungarian clients. The business was nationalised after the Second World War.