FAITHFUL REPRODUCTION OF A PENDULUM CLOCK "À TROIS ROUES" WITH THE FRENCH REPUBLICAN AND GREGORIAN CALENDARS

By Abraham-Louis Breguet, Paris, designed ca. 1795.

Polished brass. Skeleton case, engraved with the days of the week. On a black marble base, applied with gilt B in brass, and featuring plaques inscribed Breguet et fils N. 1501. Three silvered, superimposed and engraved chapter rings: the lower one with the Gregorian and Republican calendars; the large central chapter ring with two twelve-hour sequences, two indexes indicating the true time and the standard time. The pivot of the intermediate cogwheel, with a three-armed hand indicates the minutes. The upper chapter ring indicates the seconds by means of an index. The clock is driven by 2 weights suspended from chains, the weights indicate the day engraved on the movement plate by means of their position. Movement with scissor escapement. Compensation by means of a double-strip made of two metals above the pendulum suspension, and adjustment via a threaded weight. Small dial in sector shape, indicates the change of the temperature.

30.5 x 19.5 x 60 cm.