This replica Cubitus 5821/1A green brings Patek Philippe’s first rectangular sport watch into a rich olive-toned palette. The 5821/1A reference launched the Cubitus collection in 2024, and this green dial version leans into the earthy color trend that has dominated luxury sport watches over the past few seasons. At 45mm the cushion-shaped case wears large, but the integrated bracelet and relatively slim profile keep it from feeling oversized. The hobnail-textured dial catches light at different angles, giving the green surface a shifting depth that flat-finished dials cannot match.

Case & Movement Specs

• Case diameter: 45mm cushion-shaped
• Case material: stainless steel
• Dial: green with hobnail texture pattern
• Crystal: sapphire with anti-reflective coating
• Bracelet: integrated stainless steel with quick-adjust clasp
• Movement: automatic caliber 26-330 SC
• Functions: hours, minutes, seconds, date

The 26-330 SC is the same caliber found in the Nautilus 5811, giving this rectangular case the same mechanical backbone as its round sibling. Winding is smooth and the micro-rotor design keeps overall thickness manageable for a 45mm case.

Caliber Breakdown

Inside, the 26-330 SC operates at 28,800 vibrations per hour with a silicon Spiromax balance spring. This caliber replaced the long-running 324 SC across multiple Patek collections starting in 2021. The power reserve sits around 45 hours, which is adequate for weekend rotation. Compared to the chronograph-equipped references some collectors favor, this time-and-date movement prioritizes reliability over complication count. Browse the full Cubitus lineup to see how the collection handles both steel and two-tone configurations.

How It Compares

Green dials have become a signature across many collections, but the Cubitus delivers the color on a rectangular canvas rather than the typical round case. The hobnail texture adds visual complexity that a smooth sunburst finish would lack. If you prefer the two-tone approach with diamond accents, consider the blue dial diamond version for a bolder statement. Either way, this replica Cubitus 5821/1A green stands as the purest steel expression of the new rectangular sport concept.