The Patek Philippe Cubitus Date Rose Gold & Steel Blue Dial 45mm Ref. 5821/1AR-001 presents a bold, contemporary approach to two-tone watchmaking. Featuring a 45mm case with rose gold bezel and side links contrasted against a steel case and bracelet, this model stands out with alternating polished and satin-brushed finishes. The sunburst blue dial is horizontally embossed and fitted with rose gold baton-style hour markers and hands, both set with white luminescent coating for optimal legibility. Powered by the selfwinding Calibre 26-330 S C, the watch offers a 45-hour power reserve and date function, visible through a sapphire crystal case back. Water resistance is rated to 30 meters, and the rose gold and steel bracelet includes a patented fold-over clasp with lockable adjustment for a secure fit. Key features include the unique case profile, two-tone construction, and distinctive guilloché dial, bringing modern versatility to the Cubitus collection.