MINUTE-REPEATING TRIPLE CALENDAR and CHRONOGRAPH YELLOW GOLD Anonymous, Swiss, Minute Repeater, Triple Date Calendar, Moon Phases, case No. 409873. Made circa 1910. Fine, large, hunting-cased, keyless, minute-repeating, 14K yellow gold pocket watch with triple-date calendar, chronograph and moon phases. Accompanied by a 12 cm. gold chain and gold clip. Four-body, bassine et filets, polished, front cover with engraved large initials: MS. Hinged gold cuvette. White enamel with Arabic numerals, outer minute track and 1/5th seconds track, subsidiary seconds dial and date dial, apertures for the days of the week, months and moon phases. Gilt spade hands. Cal. 20```, nickel-plated, 19 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, centrifugal governor, index regulator, repeating on gongs activated by a push-button on the band.