The Patek‑Philippe Cubitus collection is a new‑release launched last year, which drew widespread attention upon its debut. Inspired by the square shape, nearly every component of the watch features square‑shaped geometry. It measures 45 mm in diameter and carries a styling distinctly different from the Nautilus series.
It is an excellent alternative for wearers with larger wrists who find the 40 mm Nautilus too small.
Powered by a 1:1‑built 26‑330 SC self‑winding movement, this calibre shares many similarities with the older 324 SC movement while adding a stop‑seconds function. All gears inside the movement are fully functional. It is a custom‑developed movement specifically made for this watch.
Thanks to this ultra‑thin movement, the watch reaches a slim case thickness of just 8.3 mm and also delivers solid water‑resistance performance.

Replica factories began producing copies of this model as early as last year. However, we believe those earlier releases were far from perfect, mainly suffering from excessive case thickness. That is why we are presenting this refined, near‑flawless version of the Patek‑Philippe Cubitus 5821 today.

This replica comes from BBR Factory. In terms of craftsmanship, its quality is on par with or even superior to that of 3K Factory. If you are satisfied with the 3K‑made Nautilus, you will most likely be even more impressed with this model.
This square‑shaped Patek‑Philippe has earned several popular nicknames among watch enthusiasts, such as “TV set” and “apple snail”. Regardless of these informal names, the genuine model still commands a strong market premium.
Since the original watch is crafted in stainless‑steel, this replica offers great collectible appeal, and its price point is comparable to the 3K Nautilus.