Swiss18 Carat gold doctors watch with register Circa 1910

Gold flyback centre seconds chronograph
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An 18-carat gold Swiss doctors watch with a nickel-finished lever movement and flyback centre seconds chronograph, circa 1910. Plain cock with polished steel indicator. Compensation balance. White enamel dial with Arabic numerals, two subsidiary dials indicating constant seconds and 30-minute registers. Polished steel chronograph work above the plate. Blue steel hands. Push-button in the pendant to operate the flyback centre seconds chronograph, dial signed. Three gold lids.

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Diameter: 50 mm
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Signed: Omega
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Weight: 86 gr.
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Working: A doctor measures the heartbeat by starting the chronograph and counts till 30 beats and then stop the chronograph, then he can see the heartbeat at the right side of the dial.
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Reference 0013000