Roger Dubuis Excalibur Monotourbillon Blue hour

The Roger Dubuis Excalibur Monotourbillon Blue Hour, reference RDDBEX1134, is a 42 mm rose gold watch produced as a limited edition of 28 pieces. The case measures 6.9 mm thick and pairs with a sapphire crystal set over an open back that reveals the movement. Inside is the manual-winding calibre RD512SQ, certified with the Geneva Seal and offering a 72-hour power reserve. The flying tourbillon sits visible on the dial side, and the piece is set with diamonds alongside blue sapphires arranged in a gradient to suggest dusk turning to night. A white calf leather strap closes with a rose gold folding clasp. Water resistance stands at 100 metres.