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Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm
Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm

Hublot Big Bang Original Unico Titanium automatic carbon dial rubber strap 43 mm

Ref. 431.NX.1370.RX
€20,000.00
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Hublot's iconic chronograph reinterpreted in a lighter, more technical titanium version, powered by the Unico HUB1280 self-winding manufacture caliber with flyback function. A sporty and refined watch that embodies the perfect balance between historic Big Bang design and contemporary watchmaking performance.

Big Bang Original Unico: back to essentials

Launched in 2005, the Hublot Big Bang immediately established a new watchmaking grammar: a layered construction, visible screws, unapologetic rubber, and an approach in which material itself becomes a language. Twenty years later, this identity has not been softened — it has been mastered, refined, and structured, making the Big Bang one of the most instantly recognizable icons of contemporary watchmaking.

With the Big Bang Original Unico Titanium 43 mm, Hublot returns to its foundations: the “Original” architecture is preserved, while the watch takes a decisive step forward by adopting a 100% in-house heart. More than a stylistic evolution, this represents a rise in mechanical legitimacy — the Big Bang in its most faithful interpretation, now driven by the power and precision of the Unico chronograph.

Design & architecture: the Big Bang DNA intact

The Big Bang Original Unico Titanium 43 mm retains all the founding codes that have defined the Big Bang since its inception. Its case features an immediately recognizable multi-layer construction, in which every element plays both a structural and aesthetic role. The six visible, non-aligned screws on the bezel — now a signature — reflect this deliberately industrial approach, far removed from any gratuitous decorative intent.

The lateral “ears,” characteristic of the Big Bang, frame the case and contribute to the model’s strong visual identity, while the rectangular chronograph pushers and rubber-clad crown emphasize the watch’s sporty, technical vocation. The black dial is distinguished by a checkerboard pattern inspired by woven carbon, adding depth without disrupting the overall balance.

The chronograph counters integrate naturally into the dial’s structure, creating a fluid and coherent reading, while the discreetly positioned date at 4:30 fades into the background in favor of overall legibility. Nothing is added to seduce; everything is designed to structure: a taut, functional aesthetic that is immediately identifiable as a Big Bang.

Proportions & ergonomics: the choice of balance

With this Big Bang Original Unico, Hublot has opted for a 43 mm diameter, conceived as a point of balance between the historic sizes of the collection. Positioned between the former 41 mm and 44 mm Big Bang models, this dimension does not feel like a compromise, but rather like an obvious and rediscovered equilibrium.

The thickness of 13.2 mm is well controlled given the complexity of the case architecture and the presence of a manufacture chronograph. The curves have been softened, the angles reworked, and the ergonomics refined so that the watch sits naturally on the wrist. The case follows the wrist’s morphology without excessive rigidity, offering a strong presence while maintaining lasting everyday comfort.

This search for balance is immediately perceptible on the wrist: the Big Bang retains its character and stature, but gains in fluidity and harmony. A subtle yet essential evolution that reinforces the idea of a model that has reached maturity.

In-house Unico HUB1280 movement

At the heart of the Big Bang Original Unico Titanium 43 mm beats the in-house HUB1280 Unico caliber, a true cornerstone of Hublot’s contemporary watchmaking legitimacy. Developed and assembled within the Nyon manufacture, this automatic chronograph movement embodies the brand’s determination to fully master its mechanics, without compromise.

The Unico caliber is distinguished by its column wheel, a guarantee of precision and smooth activation, as well as its flyback function, which allows a chronograph measurement to be restarted instantly without stopping the mechanism. Operating at a frequency of 4 Hz (28,800 vibrations per hour), it offers a power reserve of approximately 72 hours, ensuring comfortable autonomy for daily wear.

The result of several years of research, the HUB1280 incorporates five patented innovations aimed at optimizing energy management, reducing friction, and ensuring long-term chronograph stability. Here, complexity is never ostentatious: the movement does not impose itself, it integrates. Visible through the sapphire caseback, it reveals itself as a precision instrument, designed to last and to support the Big Bang in its role as a modern, high-performance chronograph.

Titanium: Hublot’s technical DNA

An emblematic material of the Big Bang since its earliest iterations, titanium asserts itself here as a choice that is both obvious and coherent. Known for being significantly lighter than steel while offering excellent mechanical resistance, it perfectly aligns with Hublot’s philosophy, where technical performance is as important as aesthetics.

On the Big Bang Original Unico Titanium 43 mm, titanium is worked with satin-brushed and polished finishes, highlighting the case’s layered construction and reinforcing the architectural reading of the whole. This alternation of surfaces captures the light with subtlety, without ever seeking a demonstrative effect, and contributes to the model’s industrial and contemporary identity.

On the wrist, titanium delivers immediate comfort: the watch maintains a strong presence while remaining unobtrusive thanks to its balance and lightness. It is an engineering material, inherited from demanding fields such as aeronautics, that naturally extends the Big Bang’s DNA — a watch designed to be worn, used, and tested over time.

Strap & functionality: designed for movement

The Big Bang Original Unico Titanium 43 mm is fitted with a structured black rubber strap, perfectly integrated into the case architecture. This choice, emblematic of Hublot, reinforces the model’s sporty identity while ensuring optimal everyday comfort, regardless of wearing conditions.

The strap features the One Click quick-change system, with the pusher positioned on the front of the case. Both functional and distinctive, this device allows the strap to be replaced in just a few seconds, without tools, while fully integrating into the watch’s design. The titanium deployant clasp ensures a secure and precise fit on the wrist.

With water resistance to 100 meters, the Big Bang Original Unico retains genuine versatility of use. Designed to accompany everyday movement as well as more active situations, it embodies a modern vision of the luxury sports watch: high-performing, comfortable, and immediately functional.

Specifications

Brand
Hublot
Reference
431.NX.1370.RX
Condition
New
Country of manufacture
Switzerland
Brand Collection
Big Bang - Hublot
Launch year
2026
Gender
Man
Must-Have / Essentials
Limited edition
Case material
Titanium
Water Resistant
100 m
Diameter
43 mm
Crystal
Breaks and scratches with difficulty, anti-reflective treatment, Sapphire crystal
Watch movement
In house automatic movement
Movement model
Hublot UNICO HUB1280
Power reserve
72 hours
Strap materials
Rubber
Buckle
Deployant clasp
Subcollection
Big Bang Original Unico
Case shape
Round
Case material
Titanium
Finishing of the case
Brushed and polished
Lugs
Titanium
Water Resistant
100 m
Diameter
43 mm
Case Thickness
13,2 mm
Case features
Sapphire display back
Crown
2 push-buttons, 3 o'clock
Crystal
Breaks and scratches with difficulty, anti-reflective treatment, Sapphire crystal
Bezel
Fixed bezel
Bezel color
Grey
Bezel / Insert material
Titanium
Dial
Stamped «Carbon Effect»
Dial color
Black
Marker
Stick pointer
Dial type
Chronograph
Display
Analog, Small second counter, Date window, 60 minutes counter
Lume
Super-LumiNova
Hands
Luminescent
Watch movement
In house automatic movement
Movement model
Hublot UNICO HUB1280
Balance frequency
28 800 Vibrations per hour (VpH) (4 Hz)
Stones
43 jewels
Functions/complications
Chronograph, Date, Subsidiary seconds
Complications/functions
Chronograph, Date, Hours Minutes Seconds, Flyback
Specific characteristics
Column wheel, Silicium escapement
Power reserve
72 hours
Strap materials
Rubber
Strap finish
Textured
Strap color
Black
Buckle
Deployant clasp with push-buttons
The opinion of the Lepage team
The Big Bang Original Unico Titanium 43 mm is a contemporary and resolutely technical interpretation of the Big Bang DNA. Its titanium case gives the watch a bold presence without sacrificing comfort, while the Unico HUB1280 caliber—with its smooth flyback and generous power reserve—offers a chronograph experience worthy of modern standards. The balance between layered design, controlled proportions, and cutting-edge materials makes it an ideal piece for lovers of sophisticated sports watches.
Our greatest reward
SHOP THE COLLECTION
HUBLOT
Reference
456.NX.0170.NX
Brand Collection
Big Bang - Hublot
Crystal
anti-reflective treatment Sapphire crystal
Functions (Bloc FP)
Automatic Sapphire crystal Water resistance 100 m Date Hour, Minute, Second 2 year warranty Titanium bracelet
HUBLOT
Reference
421.NX.1170.RX
Brand Collection
Big Bang - Hublot
Power reserve
72 hours
Buckle
Deployant clasp with push-buttons
HUBLOT
Reference
301.SX.710.RX
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
42 hours
HUBLOT
Reference
301.CM.130.RX
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
42 hours
HUBLOT
Reference
301.SB.131.RX
Brand Collection
Big Bang - Hublot
Crystal
anti-reflective treatment Sapphire crystal
Power reserve
42 hours
HUBLOT
Reference
444.QN.1170.NR
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
10 jours
HUBLOT
Reference
444.NX.1170.RX
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
10 jours
HUBLOT
Reference
444.OX.1180.RX
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
10 jours
HUBLOT
Reference
421.CY.471Y.RX
Brand Collection
Big Bang - Hublot
Crystal
Breaks and scratches with difficulty anti-reflective treatment Sapphire crystal
Power reserve
72 hours
HUBLOT

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