Swiss 18 carat gold minute repeating lever watch Circa 1910

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A rare yellow gold open faced minute repeating watch with ‘extra’ movement, circa 1910. Retailed by tiffany & co. Extra quality nickel lever movement, 29 jewels, 8 adjustments, repeating on two gongs with two hammers, white enamel dial, blued steel spade hands, Breguet numerals, outer track calibrated for minutes, 18k yellow gold case, hidden hinge, gold cuvette, case, dial and movement signed by retailer, movement and case signed by maker.
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Diameter: 47 mm
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Signed: Patek Philippe  Genève