Fine Swiss pink gold minute repeater with chronograph Circa 1890

Gold hunter with perpetual calendar and moon phases
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A very fine Swiss 18K pink gold minute repeating hunting cased keyless pocket watch with perpetual calendar, moon phases and chronograph, circa 1890. A solid, polished case with a gold-hinged cuvette. White enamel dial with radial Roman numerals, outer minute ring, outermost 1/5th seconds graduation, four sunk subsidiary dials for the days of the month, days of the week, the months of the 4-year leap cycle, and aperture for the moon phases. Gold spade hands. A nickel movement, 31 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, chronograph mechanism on the back plate, repeating on gongs by activating slide on the band.
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Diameter: 57 mm
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Signed: Audemars Frères & Co.  Genève
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The movement is oxidized.
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What is a Minute Repeater? A minute repeating watch tells the time both visually and audibly. A slide on the side of the case, usually near the 9, will activate two hammers in the movement. These hammers strike two gongs curled within the case. First one hammer strikes a gong of lower tonality; it will count out the hours. Then both hammers will strike both gongs alternatively to count out the quarter hours after that hour, and then the second hammer alone striking a gong of higher tonality will count out the minutes after that quarter-hour. The repeating mechanism was developed by Daniel Quare. In 1687, he patented a mechanism that sounded the hours and the quarter hours. The early repeaters used bells. At the end of the 18th century, two bent-wire gongs became the more popular mechanism. In 1892, the first-minute repeater wristwatch was produced by Omega, a model with a round-shaped case.