Swiss watch with perpetual calendar and moon phase Circa 1960

Gentleman’s thin Geneva open faced pocket watch
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A gentleman’s very fine and rare, thin Geneva pocket watch with perpetual calendar and moon phase, circa 1960.
18k rose gold case, polished, push back. Silvered dial, applied Arabic gold numerals, auxiliary seconds, subsidiary dials for indications of the weekday, the month in combination with the leap year and the date, gold leaf hands. Bridge movement, rhodium plated, “fausses côtes” decoration, 8 adj., 18 jewels, Geneva quality hallmark, gold screw compensation balance, index spring fine adjusting device.
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Diameter: 46 mm
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Weight: 74 g
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Signed: Patek Philippe Genève