The Patek Philippe Cubitus reference 5821/1A-001 is a contemporary luxury sports watch that marks the introduction of the brand’s first new collection in twenty-five years. It features a distinctive 45mm square-shaped stainless steel case with rounded corners and a remarkably slim profile of 8.3mm. The design is defined by its sunburst olive green dial with a horizontally embossed pattern, adorned with white gold applied baton-style hour markers and hands, all featuring a luminescent coating for enhanced legibility. The case and integrated steel bracelet exhibit a sophisticated interplay of vertical satin-brushed and polished finishes, secured by a patented fold-over clasp with a lockable adjustment system.
This timepiece is powered by the self-winding caliber 26-330 S C, which is visible through a sapphire crystal case back and features a 21K gold central rotor decorated with a horizontal motif matching the dial. The movement supports central hours, minutes, and sweep seconds, along with a date aperture located at the 3 o’clock position and a stop-seconds function for precise time setting. It offers a power reserve ranging from 35 to 45 hours and is water-resistant to 30 meters, utilizing a screw-down crown to help protect the internal mechanism.
General reviews of the Cubitus 5821/1A-001 highlight its bold, modern aesthetic and its position as a “casual chic” alternative to the legendary Nautilus and Aquanaut lines. While its 45mm diameter initially led to concerns about its size, many reviewers note that the slim case height and ergonomic integrated bracelet allow it to wear more compactly than the numbers suggest, fitting comfortably even on average-sized wrists. Critics have pointed out the relatively low water resistance for a sports watch and the use of a round movement in a square case, but collectors often praise the attractive olive green dial and the high standard of finishing characteristic of Patek Philippe.