Breguet CLASSIQUE GRANDE COMPLICATION 5347 specifications

Case: round, in 950 platinum, with finely fluted caseband. Sapphire caseback. Rounded horns welded to the case and screw-pins to secure the strap. Water -resistant.

Dial: ring-shaped forming a flange in 18K silvered gol d. Individually numbered and signed Breguet. Chapter ring with Roman numerals. Breguet minute hand in blued steel. The hour hand is an extension of the bridge supporting the two tourbillon carriages. Engine-turned by hand, a center plate featuring two apertures for the tourbillons rotates in step with the passing hours.

Movement: handwound mechanical. Twin tourbillon regulators mounted on the manually engine -turned rotating center plate. The two regulators are coupled by a set of differential gears that achieve a mean rate of the the design’s two movements. The tourbillons effect a complete revolution in 12 hours. Movement numbered and signed Breguet. 50 - hour power reserve. 16 1/2 lines. 69 jewels. Cal. 588. Breguet overcoil. Frequency 2.5 Hz. Monometallic B reguet balance with four gold regulating screws. Adjusted in 6 positions. The back of the movement bears a hand -engraved drawing representing the solar system, inspired by the 60 -second rotation of the tourbillons on themselves and their rotation in tandem around a center axis over a 12-hour period.