The Hublot Square Bang Unico 821.NX.0170.RX.0904 is a 42mm automatic watch in titanium. It sits inside the Square Bang Unico family, which is Hublot's angular take on their round Bang lineup. The case carries a diamond-set bezel and pairs with a black rubber bracelet.
This review covers what we know from the piece itself and what buyers at our desk actually ask about. We will look at the specs, the stones, the wrist feel, and who this watch is really built for.
821.NX.0170.RX.0904 at a glance
| Specification | Detail |
|---|---|
| Reference | 821.NX.0170.RX.0904 |
| Model family | Hublot Square Bang Unico |
| Case size | 42mm |
| Case material | Titanium |
| Dial | Grey with index markers |
| Movement | Automatic |
| Bracelet / strap | Rubber |
| Condition | Brand New |
| Asking price at Bizak | $61,599 |
What the specs mean on the wrist
Titanium is the right metal for a 42mm square case. Square cases push more metal toward the edges, so weight matters. Titanium keeps the watch light on the wrist even with the extra surface area. The diamond-set bezel adds visual weight without adding much physical weight, which is a real benefit here.
The movement is automatic, so daily wear winds it. The bracelet is black rubber, which works well with titanium. Rubber is comfortable, it resists sweat and salt, and it suits the sporty side of this design. The grey index dial keeps things clean inside a busy case.
The dealer’s take
Buyers who ask for this reference usually want something that reads as dressy but still feels tough. The square case and diamonds pull dress-watch attention. The titanium and rubber bracelet say sports watch. That combination is what draws people to the Square Bang Unico line in general, and the jewellery version pushes the dressy side further. Most questions at the desk are about the diamond setting and whether the stones hold up to daily wear.
The other common question is about case shape on the wrist. A 42mm square sits differently than a 42mm round. It tends to wear larger because of the straight edges. We always suggest trying a square-case watch before buying if you have not worn one before. If you have worn one and liked it, this reference is a natural next step.
What to check before you buy a Square Bang Unico
- Stone setting integrity: Inspect every diamond in the bezel under good light. Look for any loose or missing stones before you accept delivery. On a brand-new piece this should be perfect, but always confirm.
- Titanium finish: Check the case surfaces for any handling marks or scratches. Brand new titanium should show no wear. Titanium scratches easier than steel, so even brief mishandling can leave marks.
- Bracelet and clasp: Test the rubber bracelet attachment and the clasp. Make sure the clasp locks cleanly and the bracelet seats flush against the case. Any gap or resistance is worth flagging.
- Documentation: Confirm you receive the full box and papers. A brand-new watch at this price point must include complete manufacturer documentation. Verify the serial number on the papers matches the case.
Who the 821.NX.0170.RX.0904 is for
This watch is for the buyer who wants a bold square-case design with stones and is not interested in a round watch. It suits someone comfortable wearing a statement piece daily or for events. The titanium and rubber make it practical enough for active wear, while the diamond bezel makes it appropriate for smarter occasions.
Alternatives worth considering
- Hublot Big Bang Unico — Buyers who want the same automatic movement in a round case often cross-shop this reference.
- Hublot Square Bang Unico Ceramic — Shoppers who prefer a darker, matte case material look at the ceramic version of the same square family.
Compare them side by side in our Square Bang Unico collection or browse every Hublot we have in stock.
The Bizak & Co. verdict
The 821.NX.0170.RX.0904 does one specific thing well. It takes a tough, light titanium case in a square shape and layers diamonds onto it without making it feel fragile. That is harder to pull off than it sounds. The grey dial and rubber bracelet stop it from going too far in either direction.
The asking price at Bizak and Co. is $61,599. This is a brand-new piece with full documentation. If you want to discuss it, trade in a watch, or make an offer, contact us directly at bizakandco.com.
FAQ: 821.NX.0170.RX.0904
What is the asking price for the Hublot 821.NX.0170.RX.0904 at Bizak and Co.?
The asking price is $61,599. This is a brand-new piece. Contact Bizak and Co. at bizakandco.com to purchase, make an offer, or ask about a trade-in.
How does the 42mm square case wear on the wrist?
A 42mm square case wears larger than a 42mm round case because of the straight edges. If you have not worn a square-case watch before, we recommend trying one on first. The titanium construction keeps the physical weight down despite the larger footprint.
What powers the Hublot Square Bang Unico 821.NX.0170.RX.0904?
The watch runs on an automatic movement. Daily wear keeps it wound. No further movement specifications are listed for this reference in our current product data.
Is the Hublot Square Bang Unico 821.NX.0170.RX.0904 a good buy?
It is a brand-new titanium watch with a diamond-set bezel, a grey index dial, and a rubber bracelet at $61,599. Whether it fits your collection depends on your taste for square cases and jewellery pieces. We have no market data to make any investment claim, so reach out to us directly to talk it through.
Ready to buy the 821.NX.0170.RX.0904? See live photos and today’s price ($61,599). Have one to move? Sell or trade it to Bizak & Co.. Here’s why collectors deal with us.
Further reading from the dealer desk: certified pre-owned Hublot · the watch-nicknames glossary · our live price checker.
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