Replica Patek Philippe Cubitus 5821/1A — 45 mm Blue Dial, 904L Steel
The all-steel Cubitus with a blue dial — the 5821/1A in the color that has defined Patek Philippe sport watches since the Nautilus. Blue on steel is the most recognizable combination in Patek’s lineup. On the Cubitus, the cushion-shaped 45 mm case gives the blue hobnail dial more surface area than any round Patek sport watch offers. This replica Patek Philippe Cubitus 5821/1A is built in 904L steel: case, bezel, integrated bracelet, deployment clasp.
Blue hobnail on 904L steel at 45 mm — the Cubitus in Patek Philippe’s signature sport-watch color, without the two-tone rose gold.
Case & Dial
45 mm cushion-shaped case in 904L stainless steel. Brushed flanks, polished bezel, integrated bracelet lugs. Sapphire crystal front and display caseback. Crown at three. The monochrome steel case lets the blue dial carry the color identity alone — cleaner and more sport-oriented than the two-tone 1AR alternative.
Blue dial with hobnail texture. The raised-dot pattern shifts the blue between navy and cobalt depending on light angle. Applied steel-tone baton markers with luminous fill. Baton hands, central sweep seconds. Date at three. The blue-on-steel combination echoes the Nautilus 5711 aesthetic in a rectangular format.
Bracelet
Integrated 904L steel bracelet with quick-adjust deployment clasp. All-steel links in brushed and polished alternation. The bracelet tapers from the case to the clasp. 904L carries more chromium than 316L, holds its finish longer, handles daily wear better. Sport-watch weight and wrist coverage.
Movement
Automatic, 28,800 vph, caliber 26-330 SC specification. 45+ hour power reserve. Decorated movement visible through the sapphire caseback. SuperClone: ±8 sec/day. Full grade details on our FAQ page.
Blue-dial steel is Patek Philippe’s most collected sport watch formula. The Cubitus brings that combination to a rectangular 45 mm case. This replica preserves the all-steel presence. Full Cubitus collection | Contact us




















Reviews
There are no reviews yet.