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TIFFANY & CO., AN 18ct. GOLD MINUTE REPEATING SPLIT SECONDS CHRONOGRAPH OPEN FACED KEYLESS LEVER POCKET WATCH
signed Tiffany & Co., No.78478, made by Edouard Koehn, Geneva, circa 1900.
nickel plated movement jewelled to the centre and with bimetallic compensation balance with blued overcoil hairspring, micrometer swan neck regulator, repeating on two gongs by operating the slide in the band, split seconds hands operated by one button in the band and one in the crown, gold cuvette with engraved inscription, white enamel dial with Roman numerals, outer Arabic five minutes, subsidiary seconds, blued steel hands, plain case, diameter 46mm.