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Hublot Big Bang Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX

Hublot Big Bang Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX Hublot Big Bang Original Unico Black Magic…

Reference 431.CI.1370.RX

Full watch configuration

Hublot Big Bang Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX

$22,800.00

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 Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX

Hublot Big Bang Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX

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Hublot Big Bang Original Unico Black Magic Ceramic 43mm Black Dial 431.CI.1370.RX

Catalogue watch price: $22,800.00 USD

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The Hublot Big Bang Original Unico 431.CI.1370.RX is a 43mm all-black ceramic chronograph featuring a black dial with index and Arabic numeral markers, a ceramic bezel, and a rubber bracelet — the complete Black Magic package in one of Hublot's most iconic references. This reference exemplifies Hublot's Art of Fusion philosophy, combining ultra-hard ceramic construction with bold, legible design for a striking monochromatic statement on the wrist.

What sets the 431.CI.1370.RX apart is its seamlessly integrated all-ceramic aesthetic — from case to bezel — paired with the comfort and grip of a rubber bracelet, making it as wearable as it is visually commanding. Contact Bizak & Co. today to purchase this reference at the best price or to learn more about availability.

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

Buy this Big Bang Original 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 Original Unico 431.CI.1370.RX — commonly known as the Big Bang Black Magic — is one of the most coveted expressions in the Big Bang lineup. Introduced as part of Hublot's ongoing commitment to advanced materials and bold design, the Big Bang Original established the template for a generation of sport-luxury watches that refuse to compromise between performance and prestige. The Black Magic designation reflects the watch's fully blacked-out identity: every surface, from the 43mm ceramic case to the ceramic bezel and the matching black dial, is unified in a single, uncompromising dark aesthetic.

The 43mm case is crafted from polished and satin-finished black ceramic, a material prized in haute horlogerie for its exceptional scratch resistance, light weight relative to steel, and deep, lustrous color that does not fade or oxidize over time. The ceramic bezel frames the dial with the same material continuity, and the rubber bracelet — a Hublot hallmark since the brand's founding — ensures the watch sits securely and comfortably on the wrist while reinforcing the sporty, contemporary character of the Big Bang line. Together, these elements create what collectors describe as a cohesive, almost architectural coherence rarely achieved in a watch of this size.

The black dial of the 431.CI.1370.RX features a combination of index hour markers and Arabic numeral accents, providing bold legibility against the dark background without interrupting the watch's monochromatic theme. The open-worked or skeletonized elements visible through the dial — a hallmark of Unico-family Big Bangs — reveal the movement beneath, adding depth and visual complexity to an already arresting face. This design choice is quintessentially Hublot: technical transparency as a form of luxury storytelling.

Powering the 431.CI.1370.RX is an automatic movement, consistent with the Unico designation that Hublot uses to denote watches equipped with its in-house manufacture caliber. The Unico movement family is celebrated among enthusiasts for its column-wheel chronograph architecture and flyback functionality, representing a serious horological achievement developed entirely within Hublot's Le Locle manufacture. This movement demonstrates that the Big Bang is not merely a design exercise but a genuine piece of mechanical watchmaking.

On the wrist, the 43mm diameter strikes an authoritative presence without veering into the oversized territory of some modern sport watches. The ceramic construction keeps the overall weight impressively low for a watch of this visual mass, making it far more comfortable for all-day wear than its bold silhouette might suggest. Whether paired with a suit, casual attire, or activewear, the Black Magic carries a versatile drama that few watches at any price point can match.

Bizak & Co. is pleased to offer the Hublot Big Bang Original Unico 431.CI.1370.RX at the best price. As an authorised and trusted luxury watch dealer, Bizak provides buyers with confidence, transparency, and expert guidance. Browse this reference at bizakandco.com or reach out directly — our team is ready to answer every question and ensure your acquisition of this exceptional timepiece is seamless from first inquiry to final delivery.

Technical Details
Reference
431.CI.1370.RX
Model
Big Bang Original Unico
Movement
Automatic
Case material
Ceramic
Bracelet material
Rubber
Dial
Black with index and Arabic numeral markers
Case size
43mm
FAQ

1. What makes the Hublot Big Bang Original Unico 431.CI.1370.RX special?
The 431.CI.1370.RX is Hublot's flagship Black Magic configuration — an all-ceramic, fully blacked-out 43mm chronograph that combines advanced materials science with bold design. The seamless integration of ceramic case, ceramic bezel, and rubber bracelet gives this reference a cohesive, uncompromising aesthetic that stands out even in a crowded luxury sport-watch market.

2. What movement powers the Hublot Big Bang Unico 431.CI.1370.RX?
The 431.CI.1370.RX is driven by an automatic movement from Hublot's Unico in-house manufacture family, known for its column-wheel chronograph architecture. The Unico designation signals genuine in-house development, reflecting Hublot's investment in vertical manufacture and serious mechanical watchmaking.

3. What is the case size of the Hublot Big Bang Original 431.CI.1370.RX?
The case measures 43mm in diameter and is crafted entirely from black ceramic, offering an authoritative wrist presence while remaining lighter than a comparable steel case. The 43mm format is considered the sweet spot in the Big Bang Original lineup, balancing bold proportions with everyday wearability.

4. Is the Hublot Big Bang Unico Black Magic suitable for everyday wear?
Yes — despite its striking all-black ceramic aesthetic and large 43mm case, the Big Bang Unico 431.CI.1370.RX is well-suited to daily wear. Ceramic is highly scratch-resistant and hypoallergenic, and the rubber bracelet provides secure, comfortable grip across a wide range of activities and wrist sizes.

5. What is the dial like on the 431.CI.1370.RX?
The dial is black and features a combination of index hour markers and Arabic numeral accents for bold, high-contrast legibility. In keeping with the Unico family aesthetic, the dial incorporates open-worked or exposed movement elements that add depth and mechanical drama to the overall presentation.

6. How can I buy the Hublot Big Bang Original Unico 431.CI.1370.RX from Bizak & Co.?
You can purchase the 431.CI.1370.RX at the best price directly through bizakandco.com. Our team at Bizak & Co. is available to assist with inquiries, answer questions about this specific reference, and guide you through a secure and transparent buying experience from start to finish.

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

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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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