Swiss gold pocket watch made for the Hispanic market Circa 1890

Gold lever chronometer pocket watch
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A fine Swiss, 18K gold, hunting cased, keyless pocket lever chronometer, made for the Hispanic market., circa 1890. With remontoire perpétuel à décrochement keyless cover winding.The front cover is decorated with an engraved trophy of a palm frond, anchor, caduceus and cornucopia, the back with a monogram “JR”. Hinged gold cuvette. White enamel dial with radial Roman numerals, outer minute track and gold painted Arabic five-minute numerals, subsidiary seconds. Gold spade hands.
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A rhodium-plated movement, Geneva striping decoration, 19 jewels, stamped twice with the Seal of Geneva Quality Mark, counterpoised straight-line lever escapement, cut-bimetallic compensation balance with blued steel Breguet balance spring, index regulator, patented winding mechanism which, when the cover is closed, transmits power via two levers to a ratchet wheel on the barrel arbour with a safety device disengaging the mechanism when fully wound, going train with an additional wheel driving a steel wheel fixed to the centre wheel having half the diameter of the driving one, second motion train driven from the canon pinion and advanced directly by pushing the teeth of the minute wheel, lever-set. Cuvette signed.
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Diameter: 52 mm
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Signed: B. Haas Jeune  Genève
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In 1873, Benjamin Haas patented a winding mechanism (English patent No. 3945), using the energy generated when closing the front cover to wind the watch. The initial idea was improved; this watch features a well-developed system with a 36-hour power reserve generated by twelve closings. To achieve this, Hass added an additional wheel to the going train, which allowed him three hours winding by a single closing. He also designed a safety device disengaging the mechanism when fully wound, which was necessary to prevent damage to the cover.