Roger Dubuis Excalibur Double Tourbillon Cobalt

Roger Dubuis presents the Excalibur Double Tourbillon Cobalt, reference RDDBEX1109, a 45 mm case in cobalt chrome. The case measures 7.35 mm thick and carries a sapphire crystal over a skeletonised blue dial. Inside is the manual-winding calibre RD108SQ, a 319-component movement bearing the Geneva Seal and offering 72 hours of power reserve. The double flying tourbillon sits at the centre of the construction, with the two carriages linked by a differential for smoother energy transmission. The open case back lets the finishing on the plates and bridges show through. This piece belongs to a limited edition of 28 and comes on a blue calf leather strap with a titanium folding clasp. Water resistance stands at 100 metres.