Thin Swiss 18k gold five-minute repeating lever Circa 1910

Gold open-faced five-minute repeater by Tiffany & Co
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A very fine and thin Swiss 18-carat gold open-faced five-minute repeating keyless lever pocket watch, circa 1910. Rhodium-plated movement, 31 jewels, counterpoised straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, repeating on gongs activated by a slide on the band. Gold hinged cuvette. White enamel dial with Breguet numerals, outer minute track, large subsidiary seconds, and original blued steel spade hands. Polished case, concealed hinges. Dial, case, and movement signed Tiffany & Co.
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Diameter: 44 mm
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Signed: Tiffany & Co