Henchoz Frères. An extremely fine and rare large 18K gold hunter case keyless pocket chronometer with one minute toubillon regulator, entered for the Neuchâtel Observatory Timing Contest of 1895, regulated by A. Hillgrén, made for the English market Signed Henchoz Frères, no. 44'075, the case with Chester hallmarks for 1900-01 Movement: Cal. 20’’’, 14 jewels, Earnshaw-type spring detent escapement, cut bimetallic compensation balance, blued steel balance spring with Phillips terminal curve and amplitude control device, one minute tourbillon with three equidistant arm polished steel cage Dial: Off-white enamel Case: Five body, polished, gold hinged cuvette, 56 mm. diam., signed
Henchoz Frères. An extremely fine and rare large 18K gold hunter case keyless pocket chronometer with one minute toubillon regulator, entered for the Neuchâtel Observatory Timing Contest of 1895, regulated by A. Hillgrén, made for the English market Signed Henchoz Frères, no. 44'075, the case with Chester hallmarks for 1900-01 Movement: Cal. 20’’’, 14 jewels, Earnshaw-type spring detent escapement, cut bimetallic compensation balance, blued steel balance spring with Phillips terminal curve and amplitude control device, one minute tourbillon with three equidistant arm polished steel cage Dial: Off-white enamel Case: Five body, polished, gold hinged cuvette, 56 mm. diam., signed
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