A Fine 18k Gold Full Hunting Quarter Repeating Chonograpth, Swiss, circa 1910
the engine turned 50mm case opening to reveal a white enamel dial with black Roman numerals with four subsidiary dials for seconds, day, month & phases of the moon, tempered blue hands, inner case engraved, "CHRONOGRAPHE repetition a quartre two circular medallions PARIS 1889 Quantiemes Phases de Lune No 415701 ", keyless wind lever movement, with chronograph mechanism visible on the back plate, compensation balance and Breguet hairspring, also assuming it's a quarter repeater.