Swiss gold minute repeater precision pocket watch Circa 1880

Hunting cased watch with perpetual calendar and moon phase
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A fine, rare hunting case minute repeating precision pocket watch with perpetual calendar and moon phase, circa 1880. 18k gold case, smooth, tiered, à goutte, slide for repeating mechanism, glazed movement. Dial is enamel, radial Roman hours, sunk seconds, day-, date-, month- and leap year indication, cobalt blue enamelled golden moon phase disc with golden moon and stars, blued spade hands. Bridge movement, nickel-plated, ground, screwed gold chatons, polished screws, 2 hammers, 2 gongs, wolfteeth winding wheels, gold screw compensation balance, blued Breguet balance spring, counterpoised lever, ruby endstone on lever and escape wheel.
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Diameter: 52 mm
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Weight: 151 g
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Signed: Albert H. Potter & Co. Geneva