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Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX

Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX Hublot Shaped Square Bang Unico Titanium Ceramic…

Reference 821.NM.0170.RX

Full watch configuration

Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX

$22,599.00
Requested accessories
Full Set

By Hublot

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX

Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX

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Hublot Shaped Square Bang Unico Titanium Ceramic 42 mm 821.NM.0170.RX

Catalogue watch price: $22,599.00 USD

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The Hublot Square Bang Unico 821.NM.0170.RX is a 42mm automatic chronograph built in a bold square titanium case, finished with a ceramic bezel, black index dial, and a signature rubber strap. This reference sits at the intersection of Hublot's Art of Fusion philosophy and the angular, avant-garde silhouette that defines the Square Bang Unico family.

Reference 821.NM.0170.RX stands out for its striking contrast between lightweight satin-brushed titanium and the durable, scratch-resistant ceramic bezel — a combination that rewards daily wear without sacrificing presence. Contact Bizak & Co. today to purchase this reference at the best price or to learn more about availability.

Compare it across every Big Bang Unico reference we carry, or browse the full Hublot collection at Bizak & Co.

Buy this Big Bang Unico, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The Hublot Square Bang Unico 821.NM.0170.RX represents one of the most architecturally daring directions the Swiss manufacture has ever taken. Where the original Big Bang introduced the world to Hublot's bold circular case language, the Square Bang Unico reinterprets that DNA through a refined square geometry — a shape that feels simultaneously retro in its 1970s spirit and thoroughly contemporary in its execution. At 42mm, this reference is sized to command the wrist without overwhelming it, landing in a sweet spot that appeals to a wide range of collectors.

The case is crafted from titanium, one of the most prized materials in modern watchmaking for its exceptional strength-to-weight ratio. Titanium is roughly 30 percent lighter than steel while remaining extremely hard-wearing, meaning the Square Bang Unico wears with a presence on the wrist that belies its actual weight. The satin and polished finishing on the angular case architecture catches light in multiple planes, giving the 821.NM.0170.RX a dynamic visual quality throughout the day.

Framing the dial is a ceramic bezel — a material that Hublot has championed for decades and that offers unrivaled scratch resistance and a deep, consistent matte-black aesthetic. Ceramic does not fade, discolor, or lose its finish the way coated metals can, ensuring the watch looks as authoritative in five years as it does on day one. The black index dial inside provides a clean, legible canvas, with polished hour markers creating a subtle interplay of light and shadow against the dark background.

Powering the Square Bang Unico is Hublot's celebrated in-house Unico movement, an automatic flyback chronograph caliber that represents the manufacture's commitment to vertical integration. The Unico movement is visible through the sapphire exhibition caseback, rewarding the owner with an unobstructed view of the skeletonized architecture and rotor. The column-wheel and lateral clutch construction, signature hallmarks of the Unico caliber, are proudly on display — a detail that serious collectors genuinely appreciate.

The rubber strap is quintessentially Hublot — one of the brand's most recognizable design signatures since its founding in 1980. Far from a compromise, the natural rubber strap is refined, supple, and exceptionally comfortable for extended wear, making the 821.NM.0170.RX as suitable for an active lifestyle as it is for a formal occasion. The H-shaped screws on the titanium case flanks and the architectural lug construction tie the whole design together in unmistakable Hublot fashion.

Whether you are a seasoned Hublot collector adding a cornerstone square-case piece to your rotation or a first-time buyer drawn to bold, technically sophisticated horology, this reference delivers on every level. Browse the listing at bizakandco.com or reach out to our team directly — we are here to ensure your buying experience is as exceptional as the watch itself.

Technical Details
Reference
821.NM.0170.RX
Model
Big Bang Unico
Movement
Automatic
Case material
Titanium
Bracelet material
Rubber
Dial
Black with index markers
Case size
42mm
Requested accessories
Full Set
FAQ

1. What makes the Hublot Square Bang Unico 821.NM.0170.RX special?
The 821.NM.0170.RX combines Hublot's iconic Big Bang DNA with a bold square case architecture that is rare in modern high-end watchmaking. The pairing of a lightweight titanium case with a scratch-resistant ceramic bezel and an in-house Unico flyback chronograph movement makes this reference a genuine standout in the brand's catalog.

2. What movement powers the Hublot Square Bang Unico 821.NM.0170.RX?
This reference is powered by Hublot's in-house Unico automatic flyback chronograph movement, which the brand developed to achieve true manufacture status. The caliber features a column-wheel, lateral clutch, and skeletonized architecture that is visible through the sapphire exhibition caseback.

3. What is the case size of the Hublot Square Bang Unico 821.NM.0170.RX?
The 821.NM.0170.RX features a 42mm square titanium case, a size that balances bold wrist presence with versatile everyday wearability. The square geometry and angular lugs give the watch a larger visual footprint than a round 42mm case, while the lightweight titanium keeps it comfortable on the wrist.

4. Is the Hublot Square Bang Unico 821.NM.0170.RX suitable for everyday wear?
Yes — the combination of a durable titanium case, scratch-resistant ceramic bezel, and supple rubber strap makes the 821.NM.0170.RX well-suited for daily use. Titanium is highly resistant to corrosion and impact, and the rubber strap handles moisture and activity with ease, making this an ideal companion for an active lifestyle.

5. What does the dial and bezel look like on the 821.NM.0170.RX?
The dial is black with polished index markers, providing a clean and legible look that pairs beautifully with the deep matte-black ceramic bezel. The contrast between the warm satin titanium case and the dark dial and bezel creates a striking monochromatic aesthetic that reads as both sporty and refined.

6. How can I buy the Hublot Square Bang Unico 821.NM.0170.RX from Bizak & Co.?
Our team is also available to answer any questions and assist with your purchase — simply reach out through the contact page for personalized assistance.

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Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

Exclusions include accidental damage, misuse, water damage, cosmetic damage, normal wear, loss and theft. Coverage and service availability for vintage or modified watches are confirmed in writing before purchase.

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90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

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U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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