Patek Philippe Cubitus Gold 5821/1AR-001 Blue Dial
Original price was: $980.00.$785.00Current price is: $785.00.
This is the Cubitus version to choose if the appeal is all in the contrast: a brushed rose-gold-tone square bezel, deep blue horizontally embossed dial, and a two-tone integrated bracelet that gives the case real presence. The 8.7mm profile is the deciding technical point, because it keeps this bold shape flat and balanced on the wrist instead of top-heavy. Compared with waiting for another factory’s future take, this one already delivers the thin case and full two-tone look. The details below matter because this watch stands or falls on proportion and finishing.
The blue dial is what makes this Cubitus convincing
The first thing that lands is the dial surface. This 5821/1AR-001 uses a dark blue sunburst dial with horizontal embossing, framed by applied baton markers and a date at 3 o'clock. On the wrist, that combination is what separates the Cubitus from a simple square sports watch. The dial has enough texture to keep the flat geometry interesting, while the white minute track dots and bright marker surrounds give it the crisp contrast knowledgeable buyers usually look for in close-up photos.
The handset is clean and straightforward, with central hours, minutes and sweep seconds, so the display stays balanced. That matters here because the case shape already has a strong personality. A cluttered layout would fight the bezel; this one stays disciplined and lets the broad blue dial do the work.
The 8.7mm case profile is the real selling point
Most buyers considering this watch already know the challenge with integrated sports models: if the case gets too thick, the whole watch loses the low, architectural feel that makes the design work. This version is built around a modified Miyota 9015 automatic movement specifically to keep the case at an ultra-thin 8.7mm profile. That is the feature that turns this piece from an interesting novelty into something genuinely wearable.
BBA's advantage on this reference is practical rather than theoretical. Instead of waiting for another interpretation, this execution already delivers the slim case height that keeps the watch tucked close to the wrist. On a shape as broad and squared-off as the Cubitus, that lower profile is not a minor detail. It is what prevents the watch from feeling blocky.
Two-tone finishing gives the case its character
The case and bracelet are done in 316L stainless steel with rose gold PVD, and the visual split is well chosen for this design. The bezel carries the warm tone, with vertical brushing across the top and polished chamfers around the edges. In photos, that brushing is essential because it keeps the bezel from looking soft or overly glossy. The faceted perimeter still catches light, but the surface finish preserves the sharp, modern look that this reference needs.
The integrated bracelet continues the two-tone treatment with rose-gold-tone center links against steel outer links. That makes the bracelet part of the design rather than an afterthought. Because the case is square and broad, a plain single-tone bracelet can make the watch look too severe. The alternating metal tones break up the mass and add depth without distracting from the dial.
What to expect from the movement and daily use
Inside is a modified Miyota 9015 automatic with decorated rotor and bridges, giving the watch a slim and proven operating base. It offers approximately 40 to 42 hours of power reserve and runs the expected functions for this reference: hours, minutes, sweep seconds and date. For many experienced buyers, that reliability is a stronger argument than an unproven novelty movement, especially in a watch meant to be worn regularly rather than simply collected.
The front crystal is sapphire with anti-reflective coating, and the caseback is also described as sapphire exhibition style. Water resistance is stated for basic daily use, meaning splash and rain exposure rather than any promise beyond that. The bracelet closes with a signed folding clasp, which suits the integrated design and keeps the watch visually coherent when off the wrist as well as on it.
Why this version makes sense
This reference is polarizing by nature, so it only works if the execution gets the fundamentals right. Here, the reasons to buy are specific: the slim 8.7mm build, the dark blue embossed dial, the brushed rose-gold-tone bezel, and the two-tone integrated bracelet that gives the Cubitus shape some warmth. Those are the details that make this watch feel deliberate rather than experimental.
If you are drawn to the Cubitus because it offers something sharper and less familiar than the usual rounded integrated sports watch, this version delivers the look in the area that matters most: wrist presence without unnecessary thickness. For a buyer who understands how much proportion controls the success of a design like this, that is the point of the watch.
Watch specification
Configuration summary for this watch
| Brand | Patek Philippe |
|---|---|
| Movement | Modified Miyota 9015 automatic, decorated rotor and bridges, approximately 40-42 hours power reserve |
| Case Material | 316L stainless steel with rose gold PVD |
| Bezel | Rose gold-tone octagonal-square bezel with vertical satin brushing and polished chamfers |
| Crystal | Scratch-resistant sapphire with anti-reflective coating on front and exhibition caseback |
| Bracelet | Two-tone integrated stainless steel bracelet with rose gold-tone center links and folding clasp |
| Water Resistance | Sealed for basic daily use (splash/rain proof) |
Buyer Q&A
Questions about this Patek Philippe watch
Why is the 8.7mm thickness such a big deal on this Cubitus?
Because the Cubitus case has a broad square footprint, extra thickness would make it feel heavy and blocky. At 8.7mm, this version keeps the watch flat and close to the wrist, which is a major part of the design's appeal.
What functions does this watch have?
It has central hours, minutes and sweep seconds, plus a date display at 3 o'clock.
What stands out visually on this 5821/1AR-001?
The key details are the dark blue horizontally embossed dial, the brushed rose-gold-tone square bezel with polished edges, and the two-tone integrated bracelet with rose-gold-tone center links.
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