Steel case, steel bracelet and an emerald green embossed dial: this Patek Philippe Cubitus 5821 clone keeps the square case with octagonal bezel that launched the line in 2024. The green dial on this Cubitus super clone taps into the color trend that has dominated sport watches across every major brand since 2020. Patek Philippe’s Cubitus collection launched in 2024 with the 5821 as its flagship reference, and the olive green 5821/1A-001 was the launch colour; this dial is a brighter, more emerald green than Patek’s olive. At 45 mm, the square case sits firmly in the oversized sport category, but the integrated bracelet and slim profile keep it from overwhelming the wrist. The horizontal embossed stripes across the green dial add depth that shifts between emerald and forest depending on ambient light. Our guide puts the green Cubitus shades side by side.

Specifications

• Model: Cubitus (hours, minutes, centre seconds, date)
• Reference: 5821/1A-001
• Case: stainless steel (genuine 5821/1A: steel)
• Case size: 45 mm, square case with octagonal bezel
• Dial: bright emerald green (genuine: olive green), horizontal embossed stripes, applied batons, date at 3
• Bezel: brushed octagonal bezel with polished chamfer
• 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 with anti-reflective coating
• Bracelet: integrated stainless steel bracelet, brushed and polished links, folding clasp

The full-steel construction gives this version a cooler, quieter look on the wrist compared to the two-tone steel and rose gold-tone variants. Brushed surfaces dominate the case flanks while polished edges frame the bezel.

Emerald Versus Olive

Green dials in the luxury sport segment serve a specific purpose: they signal that the wearer chose something beyond the default black or blue. On the Cubitus, the green reads differently from the Nautilus green because the square case shape frames the dial in wider proportions. The embossed stripes scatter light across the surface rather than reflecting it in one direction, which prevents the dial from appearing flat under fluorescent lighting. For a different color approach on the same platform, the turquoise dial version pushes even further into unconventional territory. See the complete Cubitus collection for all available dial options.

Living With a 45 mm Green Cubitus

The steel Cubitus 5821 wears like its two-tone siblings, since all our versions share the same steel case and bracelet underneath the finish. The 45mm case width sounds large on paper, but the square shape distributes that dimension differently than a round case would. Lug-to-lug distance stays manageable because the integrated bracelet curves immediately at the case edge. The green dial adds character that the black and blue versions trade for versatility. If you want the real launch shade, compare it with our olive 5821/1A-001; this replica Cubitus is for those who like their green a little brighter.

Other versions of this model in stock: Patek Philippe Cubitus 5821 in rose gold tone, Patek Philippe Cubitus 5821 white dial, Patek Philippe Cubitus 5821 brown dial, Patek Philippe Cubitus 5821 brown dial (70454).