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Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW

Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW

$31,199.00

*As with all fine timepieces, prices and availability are subject to market conditions and do not constitute a binding agreement.

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Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW

Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW

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Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW

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Hublot Big Bang Unico Full Magic Gold 44mm Black Skeleton Dial Rubber Strap 421.MX.1130.RX - BRAND NEW · $

  • A fully refundable $200 deposit secures this watch and confirms your order.
  • The balance of $ is paid by bank wire — instructions are emailed to you right after checkout.
  • Market prices move: if the price changes or we cannot secure the piece, your deposit is refunded in full.
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  • Complimentary bracelet sizing before shipping — how to measure your wrist.

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The Hublot Big Bang Unico 421.MX.1130.RX is a brand-new 44mm automatic chronograph crafted entirely in Hublot's proprietary Magic Gold — a scratch-resistant 18k gold alloy — and finished with a striking black skeleton dial and matching black rubber strap. This reference pairs the bold, architectural proportions of the Big Bang family with the unmistakable warmth and exclusivity of Magic Gold, making it one of the most distinctive luxury sport watches available today.

What sets the 421.MX.1130.RX apart is the rare combination of a near-indestructible gold case material and an open-worked dial that showcases the in-house Unico movement beneath — a pairing few watches at any price point can claim. Available brand new with full box and papers, this is an exceptional opportunity for collectors and enthusiasts alike; contact Bizak & Co. today to secure yours at the best price.

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 Big Bang Unico in Magic Gold — reference 421.MX.1130.RX — represents one of the most technically ambitious and visually dramatic expressions of the Big Bang collection. Launched as a cornerstone of Hublot's luxury sport lineup, the Big Bang family redefined what a bold, fusion-material Swiss watch could be, and the Magic Gold iteration elevates that philosophy to its apex. Magic Gold is Hublot's patented scratch-resistant 18k gold alloy, developed in collaboration with the Swiss Federal Institute of Technology (EPFL), and it remains one of the hardest gold materials ever used in watchmaking — a genuine engineering breakthrough that gives this watch an aura no standard gold timepiece can replicate.

At 44mm, the Big Bang Unico commands immediate wrist presence without apology. The case architecture is unmistakably Hublot: faceted lugs secured by exposed H-shaped screws, an integrated rubber strap that flows organically from the case, and a bezel rendered entirely in Magic Gold to match the case. Every surface has been considered — polished and satin-brushed finishing coexist to create depth and contrast across the gold material, catching light in ways that continually reward close attention.

The black skeleton dial is where the 421.MX.1130.RX truly distinguishes itself. Rather than concealing the movement behind a solid chapter ring, Hublot opens the dial entirely, allowing the viewer to trace the architecture of the in-house Unico caliber through the sapphire crystal. Sub-registers for the flyback chronograph and a date window are integrated seamlessly into the skeleton layout, and the overall effect is of mechanical sculpture rather than mere timekeeping — bold, dark, and unapologetically complex against the golden case.

Powering the watch is Hublot's in-house Unico automatic movement, a manufacture caliber that incorporates a column-wheel flyback chronograph and a distinctive lateral clutch mechanism visible through the openworked dial and case back. The Unico movement is widely recognized among enthusiasts as a genuine manufacture achievement — designed, developed, and produced within Hublot's own facilities, and specifically engineered to be appreciated visually as much as mechanically. The black rubber strap is crafted to Hublot's exacting standards, comfortable on the wrist and resistant to perspiration and UV degradation, making it as practical as it is handsome.

For the collector, the 421.MX.1130.RX occupies a rare intersection: it is simultaneously a statement of technical innovation, a luxury object in precious metal, and a highly wearable sport watch. Magic Gold references appreciate in desirability precisely because the material is exclusive to Hublot and labor-intensive to produce. This reference is presented brand new, complete with Hublot box and papers, ensuring authenticity and preserving every option for the buyer — including future resale value.

At Bizak & Co., we specialize in sourcing and presenting exceptional timepieces at the best possible prices, and the Hublot Big Bang Unico 421.MX.1130.RX is among the finest examples we offer. Our team is available to answer questions, provide additional imagery, or assist with secure purchasing and shipping. If you are ready to buy the Hublot Big Bang Unico Magic Gold online, contact Bizak & Co. now — opportunities to acquire this reference brand new are genuinely limited.

Technical Details

Reference Number 421.MX.1130.RX

Model Family Big Bang Unico

Movement Automatic

Case Material Yellow Gold

Bracelet Material Rubber

Dial Black skeleton

Case Dimension 44mm

Year

Condition Brand New

Box & Papers Full Set

FAQ

1. What makes the Hublot Big Bang Unico 421.MX.1130.RX special?
The 421.MX.1130.RX combines Hublot's proprietary Magic Gold — one of the hardest gold alloys ever used in watchmaking — with a fully open-worked black skeleton dial and an in-house Unico flyback chronograph movement. This confluence of exclusive material, haute horlogerie movement, and bold design makes it one of the most technically and aesthetically distinctive watches in the Big Bang collection.

2. What movement powers the Hublot Big Bang Unico Magic Gold?
The watch is powered by Hublot's in-house Unico automatic caliber, a manufacture movement featuring a column-wheel flyback chronograph mechanism and a lateral clutch that is visible through the skeleton dial. The Unico caliber is designed and produced entirely within Hublot's own manufacture facilities in Nyon, Switzerland.

3. What is the case size of the Hublot Big Bang Unico 421.MX.1130.RX?
The case measures 44mm in diameter and is crafted entirely in Hublot's Magic Gold alloy, including the bezel. This is the full-size Big Bang Unico expression, offering commanding wrist presence suited to enthusiasts who prefer a bold, substantial watch.

4. Is the Hublot Big Bang Unico Magic Gold suitable for everyday wear?
Yes — while Magic Gold is a precious 18k gold alloy, it is engineered to be significantly more scratch-resistant than conventional gold, making it far more practical for daily wear than a standard gold case. The black rubber strap also adds comfort and durability, allowing the watch to transition naturally from formal to casual settings.

5. What is Magic Gold and why does it matter?
Magic Gold is a patented scratch-resistant 18k gold alloy developed by Hublot in partnership with the Swiss Federal Institute of Technology (EPFL). It is produced through a unique process that fills a ceramic matrix with liquid gold, resulting in a material that is measurably harder than standard gold while retaining the warmth and prestige of an 18k precious metal — exclusive to Hublot watches.

6. Is the Hublot Big Bang Unico 421.MX.1130.RX a good investment, and how can I buy it from Bizak & Co.?
Magic Gold references from Hublot are produced in limited quantities due to the complexity of the material, and demand among collectors remains consistently strong — making them sound choices for those who also consider long-term value. This reference is available brand new with full box and papers at Bizak & Co.; contact us directly at bizakandco.com to purchase or to request additional details.

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