An unusual Swiss gold openface keyless quarter repeating chronograph pocketwatch in plain case with engraved monogram to the reverse, the white enamel dial with Roman numerals, Arabic five-minute divisions, subsidiary seconds, sector for elapsed minutes 0 - 15, sweep centre seconds operated by a single button in the crown, gold spade hands, the frosted gilt movement jewelled to the centre with bimetallic balance and lever escapement, repeating the quarters on two gongs operated by a slide in the band, the hinged cuvette engraved Fontana Freres., Galerie de Valois, 122, 123, 124, Palais-Royal, Paris, the case no.9499