Roger Dubuis Excalibur Perpetual Calendar Quatuor

Roger Dubuis presents the Excalibur Quatuor, reference RDDBEX1127, a 48 mm cobalt watch. The dial is fully skeletonized, exposing the layered construction beneath the sapphire crystal. Manual-winding calibre RD116 drives the piece, carrying the Genevian Seal and holding a 40-hour power reserve. A display back opens onto the movement's finishing, with wheel-beveling and frosting visible throughout. The case belongs to a limited edition of eight pieces. A blue calf leather strap fits the case and closes with a titanium folding buckle. Both strap and clasp use the Quick Release System for easy interchange. Water resistance is rated to 100 metres.