Patek Philippe Cubitus 5821/1A-001 replica, blue dial
This Patek Philippe Cubitus 5821/1A-001 replica follows the all-steel version of the Cubitus, the square sports model Patek Philippe added to its catalogue. The blue dial is embossed with horizontal lines that catch the light in bands as the wrist turns. Applied batons mark the hours, a double baton sits at 12 and the date shows in a white window at 3.
Case and bracelet
The case measures 45 mm and has cut corners, so from above it reads as a square with an eight-sided frame. The bracelet is integrated, without a gap between case and first link. A 45 mm square case is a lot of watch: our size guide puts it on wrists over 19 cm. Most wrists need 2-4 links out, which any watchmaker can do. The left flank carries a polished bar between two hinge-shaped ears, and the crown on the right is engraved with the cross emblem.
Tier and timekeeping
Only the SuperClone tier is listed for this reference. It uses 904L steel and a sapphire crystal, runs within -5/+6 seconds a day and keeps going for 40-48 hours off the wrist. Your own watch is photographed and filmed before dispatch, and nothing ships until you approve it.
Other steel Cubitus dials
The same case with a darker dial is the Cubitus 5821 with a black dial, and the lightest option is the Cubitus 5821 with a white dial. Steel also comes with a deep green dial or a turquoise dial. If you like the blue but want rose gold-tone accents, see the two-tone 5821/1AR in blue or the two-tone Cubitus with a navy dial, and for blue with stones there is the stone-set blue Cubitus. The Cubitus 5822P adds a big date and a moon phase. Every version is in our Cubitus collection, and the guide to new Patek Philippe models explains where the Cubitus sits next to the Nautilus.
Questions about the blue Cubitus
How does the 45 mm Cubitus wear compared with a 40 mm Nautilus?
It looks and feels bigger: 45 mm against 40 mm, and the square case covers more of the wrist than the rounded Nautilus. Tell us your wrist size and we will help you choose.
Is the blue as bright as on the studio picture?
On the QC photos the blue darkens toward the edges of the dial, so in person it reads deeper than the even blue of the studio picture.
Does it have a display back?
Yes. The QC photos show a sapphire back with the automatic movement, its bridges and a gold-tone rotor engraved with the cross emblem.




















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