F.Roetig, Havre: An unusual late 19th century gold openface chronograph pocketwatch in engine-turned case with chased and engraved enamelled monogram to the reverse, the white enamel dial with Roman numerals, Arabic five-minute divisions, subsidiary seconds, outer pulsations ring with sweep centre-seconds operated by the crown and second button in the band, the signed frosted gilt half-plate movement with bi-metallic balance, lever escapement, diamond end-stone to the engraved cock, with unusual polished steel chronograph mechanism, under signed cuvette numbered 1635