Patek Philippe launched the Cubitus in 2024 as a new square sports line, and this replica Cubitus takes the 5821 shape into a 45 mm rose gold-tone case with a white dial, a combination Patek does not make. The square case with integrated bracelet borrows design DNA from both the Nautilus and the brand’s dress watch tradition, creating a silhouette that sits between pure sport and refined elegance. At 45mm the Cubitus is one of the larger entries in the current catalog, but the square shape distributes that size differently than a round case, wrapping around the wrist rather than sitting on top of it. Our notes on full rose gold-tone 5821 clones cover the plating.

Specifications

• Model: Cubitus (hours, minutes, centre seconds, date)
• Reference: 5821 (factory variant in rose gold tone, 45 mm)
• Case: rose gold tone over steel (genuine: Patek’s only rose gold Cubitus is the 40 mm 7128/1R in 18k rose gold)
• Case size: 45 mm, square case with octagonal bezel
• Dial: white, horizontal embossed stripes, rose gold-tone batons, date at 3
• Bezel: rose gold-tone octagonal bezel
• Functions: hours, minutes, centre seconds, date at 3
• Movement: clone Cal. 26-330 S C, automatic
• Power reserve: 42 hours (genuine Cal. 26-330 S C: 45 hours)
• Water resistance: 30 m (not for swimming)
• Crystal: sapphire
• Bracelet: integrated bracelet in rose gold tone

The horizontal embossing on the white dial creates rows of raised stripes that catch light from multiple angles. This texture echoes the horizontal relief of the Nautilus dial rather than any Clous de Paris guilloché.

Rose Gold-Tone Batons and the Clone Calibre

The genuine caliber 26-330 S C is the same movement Patek uses in the Nautilus 5811, which replaced the legendary 5711, and this watch runs on the clone Cal. 26-330 S C. Sharing this caliber signals that the Cubitus sits at the same mechanical tier as the brand’s flagship sport watch. The movement provides center seconds, date at 3 o’clock, and about 42 hours of power reserve on the clone (45 on the genuine). Compare this white dial variant against the brown dial version of the 5821 to see how color choice transforms the same case and bracelet. The wider Cubitus collection shows both single-metal and two-tone executions of this new silhouette.

White Dial on a Full Rose Gold-Tone Case

The Cubitus exists because Patek recognized demand for a sport watch that does not look like a Nautilus or Aquanaut. The square case with octagonal bezel fills that gap with a shape that competitors like Cartier Santos have explored but Patek never attempted until now. White on rose gold tone reads dressier than the green or blue dials available on steel versions, pushing this particular reference toward collectors who want the new case shape in a more refined execution. This replica Cubitus keeps that clean look, with rose gold-tone batons and hands as the only warm touches on the dial.

Other versions of this model in stock: Patek Philippe Cubitus 5821/1AR-001 blue dial, Patek Philippe Cubitus 5821/1A white dial, Patek Philippe Cubitus 5821/1A tiffany blue dial, Patek Philippe Cubitus 5821/1A.