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Hublot Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX

Hublot Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX Hublot Big Bang Unico GMT King Gold…

Reference 471.OL.7128.RX

Full watch configuration

Hublot Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX

$28,599.00
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 Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX

Hublot Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX

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Hublot Big Bang Unico GMT King Gold Blue Ceramic 45mm 471.OL.7128.RX

Catalogue watch price: $28,599.00 USD

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The Hublot Big Bang Unico GMT King Gold Blue Ceramic 471.OL.7128.RX is a 45mm luxury sports watch combining a warm King Gold case with a striking blue ceramic bezel and an open-worked skeleton dial featuring index and Arabic numeral markers. Completing the package is a comfortable rubber strap and Hublot's signature bold-architecture case design.

Reference 471.OL.7128.RX stands out through the dramatic contrast between the warm tones of King Gold and the deep blue ceramic bezel, making it one of the most visually arresting configurations in the Big Bang Unico GMT lineup.

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

Buy this Big Bang Unico GMT King Gold, 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 Big Bang Unico GMT King Gold Blue Ceramic, reference 471.OL.7128.RX, is one of the most boldly conceived pieces in modern haute horlogerie — a 45mm statement watch that fuses cutting-edge materials science with Hublot's philosophy of the Art of Fusion. Launched as part of the celebrated Big Bang Unico family, this reference pairs a King Gold case — Hublot's proprietary 18-karat rose gold alloy formulated to resist scratching and maintain its warm luster longer than standard gold — with a deep blue ceramic bezel that delivers both visual drama and exceptional hardness. The result is a watch that reads as simultaneously precious and indestructible.

The Big Bang line has anchored Hublot's identity as a disruptive luxury watchmaker since its debut in 2005, and the Unico subfamily elevated that proposition further by housing an in-house developed movement — a significant milestone for the brand. The GMT complication adds genuine travel utility to the collection's sporty DNA, allowing the wearer to track a second time zone at a glance, a feature that resonates with the international lifestyle Hublot has always targeted. Reference 471.OL.7128.RX sits at the intersection of complication, material innovation, and design audacity.

The dial of the 471.OL.7128.RX is an exercise in architectural transparency. The skeleton treatment opens up the movement to full view, allowing the mechanical architecture to serve as its own decoration, while index and Arabic numeral markers maintain legibility without cluttering the composition. The interplay between the warm King Gold sub-dial bridges and plates and the cool blue tones of the ceramic bezel creates a chromatic tension that is unmistakably Hublot and highly desirable on the secondary and primary market alike.

At 45mm, this reference commands wrist presence with authority. The Big Bang case architecture — its porthole-inspired bezel screws, H-shaped case flanks, and integrated lug design — is instantly recognizable and remains one of the most iconic silhouettes in contemporary watchmaking. The rubber strap maintains the sporty, wearable character that makes a watch of this complexity approachable as an everyday companion, offering both comfort and durability whether worn in the boardroom or on the move.

Bizak & Co. specializes in sourcing and presenting new and pre-owned luxury timepieces at competitive prices, backed by expert authentication and professional service. Whether you are adding to a Hublot collection or purchasing your first Big Bang, this is a rare opportunity to own one of the line's most coveted material-and-complication combinations — contact us today or buy online at bizakandco.com.

Technical Details
Reference
471.OL.7128.RX
Model
Big Bang Unico GMT King Gold
Movement
Automatic
Case material
Rose Gold
Bracelet material
Rubber
Dial
Skeleton with index and Arabic numeral markers
Case size
45mm
Requested accessories
Full Set
FAQ

1. What makes the Hublot Big Bang Unico GMT 471.OL.7128.RX special?
Reference 471.OL.7128.RX combines Hublot's proprietary King Gold case with a deep blue ceramic bezel and a skeletonized dial, creating a dramatic contrast that is unique to this configuration within the Big Bang Unico GMT family. The addition of a GMT complication also gives it real-world travel functionality beyond pure aesthetics.

2. What movement powers the Hublot Big Bang Unico GMT 471.OL.7128.RX?
This reference houses an automatic in-house Hublot Unico movement with a GMT complication, reflecting the brand's commitment to developing proprietary calibers since the Unico family's introduction. Specific technical specifications such as power reserve and jewel count should be confirmed with Bizak & Co. or the official Hublot documentation supplied with the watch.

3. What is the case size of the Hublot Big Bang Unico GMT King Gold Blue Ceramic?
The 471.OL.7128.RX features a 45mm case crafted in Hublot's King Gold, the brand's scratch-resistant proprietary 18-karat rose gold alloy. This sizing delivers bold wrist presence consistent with the Big Bang line's signature oversized aesthetic.

4. Is the Hublot Big Bang Unico GMT 471.OL.7128.RX suitable for everyday wear?
Yes — despite its precious King Gold construction and skeletonized movement, the rubber strap and robust ceramic bezel make it a highly wearable daily watch. The Big Bang case is engineered to be as durable as it is luxurious, making it a practical choice for active, well-traveled wearers.

5. What are the dial and bezel materials on reference 471.OL.7128.RX?
The bezel is crafted from blue ceramic, a material prized for its hardness, scratch resistance, and rich depth of color that standard painted or PVD finishes cannot replicate. The dial is open-worked in a skeleton configuration, featuring both index and Arabic numeral markers to balance mechanical artistry with legibility.

6. Is the Hublot Big Bang Unico GMT 471.OL.7128.RX a good buy, and how can I purchase it from Bizak & Co.?
This reference is highly desirable due to its rare combination of King Gold, blue ceramic, GMT functionality, and skeleton architecture — attributes that drive strong collector interest.

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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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