Courvoisier Frères. A very fine and rare 18K gold hunter case keywound lever watch with single train, two independently adjustable time zones, stoppable jump centre-seconds, flying fifths of a second diablotine and date Signed Courvoiser Frères, Chaux-de-Fonds, Suisse, no. 5317, circa 1850 Movement: manual, jewelled to the third wheel, independent jump center-seconds and fifths of a second diablotine activated by a slide in the band Dial: two independently adjustable meantime dials, subsidiary seconds and 1/5th second diablotine, date, outermost seconds Case: five-body, engine-turned covers, hinged gold cuvette with engine turned border, 51 mm. diam., signed and numbered
Courvoisier Frères. A very fine and rare 18K gold hunter case keywound lever watch with single train, two independently adjustable time zones, stoppable jump centre-seconds, flying fifths of a second diablotine and date Signed Courvoiser Frères, Chaux-de-Fonds, Suisse, no. 5317, circa 1850 Movement: manual, jewelled to the third wheel, independent jump center-seconds and fifths of a second diablotine activated by a slide in the band Dial: two independently adjustable meantime dials, subsidiary seconds and 1/5th second diablotine, date, outermost seconds Case: five-body, engine-turned covers, hinged gold cuvette with engine turned border, 51 mm. diam., signed and numbered
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