Hublot Big Bang Unico King Gold Black

The Hublot Big Bang Unico King Gold Black combines Hublot’s distinctive Big Bang architecture with a warm 18K King Gold case, black ceramic-inspired detailing, a black skeleton dial and an integrated automatic flyback chronograph movement. The result is a luxury sports chronograph designed around Hublot’s philosophy of combining precious metals, contemporary materials and high-performance mechanical watchmaking.

The model covered here is the 44 mm Hublot Big Bang Unico King Gold, reference 421.OX.1180.RX. Hublot specifies a polished and satin-finished 18K King Gold case, a polished and satin-finished 18K King Gold bezel with six H-shaped titanium screws, a matte black skeleton dial, black structured lined rubber straps and a King Gold and black PVD titanium deployant clasp.

For collectors looking for additional luxury watches, the LuxeChronos Watches collection offers a broader selection of premium timepieces.

For the manufacturer’s specifications, consult the official Hublot Big Bang Unico King Gold page.

Hublot Big Bang Unico King Gold Black Overview

The Hublot Big Bang Unico King Gold Black is a 44 mm luxury chronograph built around the combination of precious 18K King Gold and a dark, skeletonized aesthetic.

The black dial exposes elements of the HUB1280 UNICO movement, while the gold case creates a strong contrast against the dark architecture.

Hublot’s current reference 421.OX.1180.RX uses a 44 mm case and houses the HUB1280 UNICO Manufacture self-winding flyback chronograph movement with column wheel. Hublot specifies approximately 72 hours of power reserve.

Key Specifications

• Brand: Hublot
• Collection: Big Bang
• Model: Big Bang Unico King Gold
• Reference: 421.OX.1180.RX
• Case size: 44 mm
• Case material: Polished and satin-finished 18K King Gold
• Bezel: Polished and satin-finished 18K King Gold
• Bezel screws: Six H-shaped titanium screws
• Crystal: Sapphire with anti-reflective treatment
• Dial: Matte black skeleton dial
• Movement: HUB1280 UNICO Manufacture automatic flyback chronograph
• Movement feature: Column wheel
• Power reserve: Approximately 72 hours
• Water resistance: 100 m / 10 ATM
• Strap: Black structured lined rubber
• Clasp: 18K King Gold and black PVD titanium deployant buckle
• Case diameter: 44 mm

These specifications correspond to Hublot’s official 421.OX.1180.RX product information.

18K King Gold Case

The case is one of the defining characteristics of the Hublot Big Bang Unico King Gold Black.

Hublot uses its proprietary 18K King Gold, giving the watch a warmer appearance than conventional 5N gold. Hublot describes King Gold as an exclusive gold alloy containing mainly platinum and designed to work with both polished and satin finishes.

The case combines polished and satin-finished surfaces to create visual contrast.

The polished areas reflect light, while the satin-finished surfaces provide a more technical appearance.

This combination is particularly effective against the black skeleton dial and black rubber strap.

44 mm Big Bang Case

The Hublot Big Bang Unico King Gold Black has a 44 mm case diameter.

The substantial case maintains the unmistakable Big Bang silhouette while providing enough space for the UNICO movement and its chronograph architecture.

The six H-shaped titanium screws are another recognizable feature of the Big Bang design.

Hublot specifies sapphire crystal with anti-reflective treatment over the dial, helping preserve readability while allowing the skeleton architecture to remain visible.

Black Skeleton Dial

The black skeleton dial is central to the identity of this watch.

Rather than hiding the movement behind a conventional solid dial, the Hublot Big Bang Unico King Gold Black allows portions of the mechanical architecture to remain visible.

Hublot identifies the dial as a matte black skeleton dial.

This open construction creates a layered visual effect.

The hands, hour markers, chronograph components and movement architecture interact visually instead of appearing as completely separate elements.

For collectors who appreciate mechanical watchmaking, the skeleton design provides a closer view of the movement.

HUB1280 UNICO Manufacture Movement

The mechanical heart of the Hublot Big Bang Unico King Gold Black is the HUB1280 UNICO Manufacture self-winding chronograph flyback movement.

Hublot describes the UNICO movement as featuring an open-heart design, a double-clutch system and a column wheel positioned on the dial side. The movement has 354 components and approximately 72 hours of power reserve.

This is important because the movement is not simply hidden inside the case.

Instead, its architecture contributes directly to the visual identity of the watch.

Flyback Chronograph

The flyback chronograph allows the chronograph to be reset and restarted through a single operation.

This functionality adds a technical dimension to the watch beyond ordinary timekeeping.

The column wheel is also part of the movement’s architecture and can be appreciated through the skeletonized dial.

72-Hour Power Reserve

The HUB1280 UNICO movement provides approximately 72 hours of power reserve.

For collectors who rotate several luxury watches, this can be useful.

A watch with approximately three days of power reserve can remain off the wrist for an extended period before requiring winding or resetting, depending on how long it has been inactive.

The power reserve is one of the practical advantages of the UNICO movement.

Black Structured Rubber Strap

The black strap complements the King Gold case.

Hublot specifies a black structured lined rubber strap for reference 421.OX.1180.RX.

The use of rubber gives the watch a more contemporary sports-watch character than a traditional leather strap.

It also creates a strong visual connection between the black skeleton dial and the dark strap.

The result is a consistent black-and-gold aesthetic throughout the watch.

King Gold and Black PVD Titanium Clasp

The clasp continues the material combination used throughout the watch.

Hublot specifies an 18K King Gold and black PVD titanium deployant buckle clasp.

This combination gives the clasp a cohesive appearance while combining precious metal with lightweight titanium.

The clasp also contributes to the overall sporty character of the watch.

100 Metres Water Resistance

The Hublot Big Bang Unico King Gold Black is rated to 100 metres / 10 ATM according to Hublot’s current specifications.

Water resistance should nevertheless be treated according to the manufacturer’s recommendations.

The rating does not mean that a mechanical luxury chronograph should automatically be used for every type of water activity.

Regular inspection and appropriate servicing are important for maintaining water resistance.

Hublot’s Art of Fusion

The Hublot Big Bang Unico King Gold Black demonstrates Hublot’s “Art of Fusion” approach through its combination of materials.

The watch brings together:

• 18K King Gold
• Titanium
• Rubber
• Sapphire crystal
• Mechanical movement
• Skeletonized architecture

Hublot’s official material information explains that the brand combines materials such as high-tech ceramic, rubber, carbon and King Gold in its watchmaking.

The resulting watch is therefore not based solely on precious-metal construction.

Instead, it uses several materials for different visual and functional purposes.

Why the Hublot Big Bang Unico King Gold Black Stands Out

The Hublot Big Bang Unico King Gold Black combines several recognizable characteristics in one watch.

King Gold

The warm 18K King Gold case provides a luxurious foundation.

Black Skeleton Dial

The open dial allows the mechanical movement to become part of the visual design.

UNICO Chronograph

The HUB1280 adds flyback chronograph functionality.

Rubber Strap

The black structured rubber strap reinforces the sporty character.

44 mm Case

The large case provides substantial wrist presence.

72-Hour Power Reserve

The automatic movement provides approximately three days of running autonomy.

These characteristics give the Hublot Big Bang Unico King Gold Black a strong contemporary identity.

Hublot Big Bang Unico King Gold Black vs King Gold Ceramic

Hublot offers more than one King Gold interpretation within the Big Bang Unico family.

The standard King Gold reference 421.OX.1180.RX uses an 18K King Gold bezel.

The Big Bang Unico King Gold Ceramic, reference 421.OM.1180.RX, instead combines a polished and satin-finished 18K King Gold case with a polished and satin-finished black ceramic bezel. It also uses the HUB1280 UNICO movement, black skeleton dial, black rubber strap and approximately 72 hours of power reserve.

This distinction is important when creating WooCommerce product listings because the references should not be treated as identical.

Hublot Big Bang Unico King Gold Black vs King Gold Diamonds

Hublot also offers diamond-set King Gold Unico models.

The 44 mm Big Bang Unico King Gold Diamonds, reference 421.OX.1180.RX.1104, uses a King Gold case and bezel set with 126 diamonds totaling approximately 1.4 carats. It retains the black skeleton dial, black rubber strap and HUB1280 UNICO movement.

The standard Hublot Big Bang Unico King Gold Black discussed on this page is reference 421.OX.1180.RX and should therefore not be confused with the diamond-set reference.

Buying a Hublot Big Bang Unico King Gold Black

When buying a Hublot Big Bang Unico King Gold Black, identifying the exact reference is essential.

For the 44 mm model covered here, the official reference is 421.OX.1180.RX.

A professional product listing should include:

• Exact reference
• Case size
• Case material
• Bezel material
• Dial type
• Movement
• Strap
• Clasp
• Water resistance
• Condition
• Box and papers
• Service history where available
• Warranty information

If a particular Hublot reference is unavailable, collectors can use the LuxeChronos Request a Luxury Watch service to request a specific model or configuration.

Authenticity Verification

Authenticity should be a major consideration when purchasing a high-value Hublot Big Bang Unico King Gold Black.

A watch should be evaluated as a complete timepiece rather than based on one feature.

Important areas can include:

• Reference number
• Case construction
• King Gold finishing
• Bezel
• Dial
• Movement
• Engravings
• Serial information
• Screws
• Strap
• Clasp
• Documentation
• Overall consistency

LuxeChronos provides additional information through its Luxury Watch Authenticity page.

For technical verification, the official Hublot Big Bang Unico King Gold product page should be used as the primary external reference.

Box and Papers

Original box and documentation can add completeness to a luxury-watch purchase.

However, product descriptions should accurately state which accessories are actually included.

Depending on the individual watch, these could include:

• Original Hublot box
• Warranty documentation
• Instruction materials
• Additional strap components
• Service records
• Purchase documentation

The condition and authenticity of the actual watch remain important regardless of whether accessories are included.

Condition

Condition should be clearly disclosed in the WooCommerce listing.

For a Hublot Big Bang Unico King Gold Black, buyers should pay attention to:

• King Gold case
• Bezel
• Sapphire crystal
• Skeleton dial
• Hands
• Chronograph pushers
• Rubber strap
• Deployant clasp
• Movement
• Any previous servicing

High-resolution photographs of the actual watch are recommended for a premium product listing.

Hublot Big Bang Unico King Gold Black Price

The price of a Hublot Big Bang Unico King Gold Black depends on the exact reference, condition, completeness and market.

Relevant factors include:

• Reference
• Case material
• Condition
• Box and papers
• Service history
• Production status
• Availability
• Seller
• Market conditions

Hublot’s official product page should be used to verify the current manufacturer information for reference 421.OX.1180.RX.

For a LuxeChronos WooCommerce listing, the actual price should be assigned to the specific watch in inventory rather than using a generic price for every Hublot Big Bang Unico model.

Sell or Trade Your Luxury Watch

Collectors sometimes acquire a new Hublot by selling or trading an existing luxury watch.

If you have a watch to sell or trade, the LuxeChronos Sell Your Watch service provides an appropriate internal destination.

The evaluation can take information such as the brand, model, condition, accessories and other details into consideration.

Request a Specific Hublot Reference

If the Hublot Big Bang Unico King Gold Black is not currently available in the desired configuration, customers can use LuxeChronos Request a Luxury Watch.

Providing the exact reference 421.OX.1180.RX can help distinguish this model from the King Gold Ceramic and diamond-set versions.

Contact LuxeChronos

For questions about availability, specifications, condition or sourcing, customers can contact LuxeChronos.

The exact reference should be included whenever possible.

Customers can also review common questions through the LuxeChronos FAQ.

Warranty and Purchase Information

Before purchasing a high-value luxury watch, buyers should review the applicable warranty and purchase policies.

LuxeChronos provides policy information through its Warranty and Policy page.

The applicable terms should always be reviewed for the individual purchase.

Frequently Asked Questions

What is the Hublot Big Bang Unico King Gold Black?

It is a 44 mm Hublot Big Bang Unico luxury chronograph featuring an 18K King Gold case, black skeleton dial, black rubber strap and HUB1280 UNICO automatic flyback chronograph movement.

What is the reference number?

The 44 mm model covered here is reference 421.OX.1180.RX.

What size is the Hublot Big Bang Unico King Gold Black?

The case measures 44 mm in diameter.

What movement does it use?

It uses the HUB1280 UNICO Manufacture self-winding chronograph flyback movement with column wheel.

How much power reserve does it have?

Hublot specifies approximately 72 hours of power reserve.

Is the Hublot Big Bang Unico King Gold Black water resistant?

Yes. Hublot lists the model with 100 metres / 10 ATM water resistance.

Does it have a skeleton dial?

Yes. Hublot identifies the dial as a matte black skeleton dial.

Is the case real gold?

Yes. The case is made from 18K King Gold, with polished and satin-finished surfaces.

What is the difference between King Gold and King Gold Ceramic?

The standard 421.OX.1180.RX uses a King Gold bezel, while reference 421.OM.1180.RX combines the King Gold case with a black ceramic bezel.

Where can I find official specifications?

The primary source is the official Hublot Big Bang Unico King Gold 44 mm page.

Final Thoughts

The Hublot Big Bang Unico King Gold Black combines 18K King Gold, a black skeleton dial, black rubber and Hublot’s HUB1280 UNICO flyback chronograph into a highly recognizable luxury sports watch.

The 44 mm reference 421.OX.1180.RX features a polished and satin-finished King Gold case, King Gold bezel, sapphire crystal, black skeleton dial, black structured lined rubber strap, 100 m water resistance and approximately 72 hours of power reserve.

Its combination of precious metal and contemporary mechanical architecture makes it particularly suitable for collectors looking for a bold Hublot Big Bang configuration.

For official specifications, link directly to the Hublot official product page.

For additional luxury watches, customers can explore the LuxeChronos Watches collection.