Replica Patek Philippe Cubitus 5821/1AR — 45 mm Blue Dial, Two-Tone
The Cubitus 5821/1AR is Patek Philippe’s first rectangular sport watch — launched in 2024 as the brand’s answer to decades of demand for a cushion-shaped alternative to the Nautilus. The 1AR suffix indicates the two-tone configuration: stainless steel and rose gold on the case, bezel, and integrated bracelet. Blue dial with hobnail texture. 45 mm across. This replica Patek Philippe Cubitus 5821/1AR is built in steel and rose gold: case, bezel, bracelet, fold-over clasp.
45 mm cushion-shaped case in two-tone steel and rose gold — the Cubitus is the rectangular sport watch Patek Philippe never made until 2024.
Case & Dial
45 mm across the cushion-shaped case. Curved flanks with alternating brushed steel and polished rose gold surfaces. Integrated bracelet lugs flow directly from the case without a visible joint. Sapphire crystal front, sapphire display caseback. Crown at three. The cushion shape is wider than a Nautilus but sits differently on the wrist — more width, less vertical height.
Blue dial with hobnail texture — a grid of tiny raised dots machined across the surface, catching light in a pointillist pattern. Applied two-tone markers in steel and rose gold. Baton hands with luminous fill. Date at three. The blue shifts between navy and electric depending on angle, with the hobnail adding depth that a flat sunburst cannot.
Bracelet
Integrated two-tone bracelet with alternating steel and rose gold links. Quick-adjust clasp for on-the-fly sizing. The bracelet integration follows the same philosophy as the Nautilus — no gap between case and first link. Fold-over deployment with push-button release. Heavier than a leather strap, with the sport-watch wrist presence the Cubitus was designed for.
Movement
Automatic, 28,800 vph, matching the caliber 26-330 SC specification — the same movement platform used in the Nautilus 5811. 45+ hour power reserve. Visible through the sapphire caseback. SuperClone: ±8 sec/day. Full grade breakdown on our FAQ page.
The Cubitus launched as Patek Philippe’s boldest sport watch since the Nautilus in 1976. This two-tone replica captures the 45 mm rectangular presence with the blue hobnail dial. Full Cubitus collection | Contact us




















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