Roger Dubuis expands its biretrograde collection with a Cosmic Blue Excalibur Calendar. This 40 mm steel timepiece features a sporty yet elegant design, highlighted by a striking blue dial inspired by the night sky. Its signature biretrograde display shows day and date with dynamic, skeletonized hands. Powered by the RD840 automatic calibre, it offers a 60-hour power reserve and meets the prestigious Poinçon de Genève standards. Crafted with meticulous hand-finishing and multiple techniques, the watch blends precision, performance, and aesthetics, embodying the Maison’s dedication to fine watchmaking and contemporary sophistication.