The clock has a gilt-brass inner case and a lacquered outer case. The enamel dial displays Roman hour numerals and Arabic five-minute numerals. The hands are of burnished steel. The special feature of this model is the hour and quarter-hour repeater, invented in England a few years earlier. The maker Daniel Quare, whose signature is engraved on the plate, perfected and presented the invention to King James II in 1687, obtaining a patent for it.