Product Overview

The HB Factory Hublot Big Bang Unico 411.JX.4802.RT replica features a transparent 45mm case, a matching bezel and a skeletonized dial. Together, these elements create an open appearance that highlights the watch’s visible mechanical details.

Silver-tone hands and hour markers contrast with the exposed dial structure. Meanwhile, a translucent rubber strap complements the clear case and bezel.

The supplier lists a “HUB 1242 Automatic” movement. This designation describes the supplied replica movement and does not indicate an original Hublot calibre.

Technical Specifications
Specification Details
Factory HB Factory
Brand Design Hublot
Collection Big Bang Unico
Model Reference 411.JX.4802.RT
Product Type Replica watch
Case Diameter 45mm
Movement Supplier-described HUB 1242 automatic replica movement
Case Material Synthetic crystal, according to supplier; exact composition unspecified
Bezel Material Synthetic crystal, according to supplier
Dial Skeletonized with silver-tone hands and markers
Central Hands Hour hand, minute hand and an additional slim central hand
Subdials Visible at 3 and 9 o’clock; actual functions require confirmation
Date Aperture Visible between 4 and 5 o’clock
Crystal Sapphire crystal, according to supplier
Strap Translucent rubber strap
Clasp Type Folding clasp
Clasp Material Titanium, according to supplier
Water Resistance Factory-rated 10 ATM; not independently tested
Movement and Functions
Central Hour and Minute Hands

The shorter, broad central hand displays the hours, while the longer, broad hand displays the minutes. Their light-colored inserts provide contrast against the skeletonized background.

Additionally, the outer track offers numbered reference points for reading the hands.

Slim Central Hand

A separate slim hand extends from the center toward the outer track. Its placement resembles a chronograph seconds hand, but the photograph alone cannot confirm its actual operation.

Subdial at 3 O’Clock

The right subdial displays a “MIN” marking and a numbered scale consistent with a minute-counter layout. However, the supplier has not confirmed whether this replica provides a working chronograph minute counter.

Subdial at 9 O’Clock

The left subdial contains a small hand over an open mechanical background. Its position resembles a conventional running-seconds display, although its actual function requires confirmation.

Date Display

A date aperture appears between 4 and 5 o’clock. Unlike the previous model’s pictured layout, this window sits below the right subdial.

The image shows a date numeral, but it does not establish the date-change mechanism or adjustment procedure.

Crown and Pushers

A crown and two pushers sit on the right side of the case. They complement the chronograph-style dial layout.

Before operating them, request the correct instructions for the supplied movement. Chronograph operation, flyback functionality and power reserve remain unconfirmed.

Case and Dial
Transparent Synthetic Crystal Case

The supplier describes the 45mm case and bezel as synthetic crystal. The photograph shows their transparent appearance, along with exposed screws and visible case construction.

However, “synthetic crystal” does not establish the exact material composition. Therefore, this listing does not describe the case as sapphire.

Skeletonized Dial

The open dial reveals a layered arrangement of mechanical components. Silver-tone Arabic numerals and baton markers frame the display, while two contrasting subdial surrounds organize the layout.

Meanwhile, the darker outer track provides a distinct border around the skeletonized center.

Sapphire Front Crystal

The supplier separately lists sapphire crystal for the front watch glass. This specification applies to the glass covering the dial, rather than confirming the material of the case or bezel.

Strap and Clasp / Buckle

The translucent rubber strap continues the transparent styling of the case. Its pale appearance also complements the silver-tone dial details.

The supplier specifies a titanium folding clasp. However, the provided photograph does not show the clasp, and the available specifications do not include strap length or adjustment range.

Water Resistance

The factory lists a 10 ATM water-resistance rating, which has not undergone independent testing.

Accordingly, this listing does not guarantee suitability for swimming, showering or diving. Keep the watch dry unless a qualified watchmaker verifies its water resistance and confirms appropriate use.

Also, avoid operating the crown or pushers while the watch is wet.

Care Instructions
Clean the case and front crystal gently with a soft cloth.
Avoid abrasive cleaners, solvents and harsh chemicals.
Protect the transparent case and bezel from impacts.
Wipe moisture from the strap before storing the watch.
Keep the watch away from strong magnetic sources and extreme heat.
Follow the confirmed instructions for winding, setting and date adjustment.
Avoid forcing the crown or pushers if you feel resistance.
Frequently Asked Questions
Is this an original Hublot watch?

No. This is an HB Factory replica based on the Hublot Big Bang Unico 411.JX.4802.RT design. The movement designation does not mean it contains an original Hublot HUB1242 calibre.

Is the transparent case made from sapphire?

The supplier lists the case and bezel as “synthetic crystal,” without specifying their exact composition. Therefore, we do not claim a sapphire case or bezel.

The front watch glass, however, is separately listed as sapphire crystal by the supplier.

Does the chronograph function?

The watch has a chronograph-style layout with two subdials and side pushers. However, the supplied information does not confirm their working functions. Please request confirmation if stopwatch operation is essential to your purchase.

Where is the date window?

The supplied photograph shows the date aperture between 4 and 5 o’clock, below the right subdial.

Does this model have a flyback function?

The supplier has not confirmed a flyback function, so this listing does not promise one.

Can I swim with this watch?

The manufacturer claims 10 ATM, but the rating has not undergone independent testing. Therefore, we do not guarantee swimming suitability.

What happens before shipping?

After the watch arrives from the factory, our team checks the movement and inspects the watch. We then provide two QC videos for your review.

Once you confirm the model and your shipping information, we arrange shipment.

Please identify the merchant when purchasing to prevent buying counterfeit HB Factory product

Welcome to the Clean Factory Watch.We specialize in offering high-quality replica watches that combine exceptional craftsmanship with reasonable pricing. All products are photographed in real life to ensure accurate descriptions, helping you make informed and confident purchasing decisions. Please note that our watches do not come with original brand boxes, but they can be purchased separately if needed.

We place great importance on each customer’s shopping experience. Every watch is guaranteed to match the version from the selected factory, with absolutely no bait-and-switch. Before shipping, we provide a complete video package including movement testing and actual product display to ensure accuracy. If you need specific details confirmed, we’re happy to take custom photos upon request. Our commitment is to always offer you the latest and most up-to-date replica watch models.

Please keep in mind that replica watches are not genuine and may not meet the extremely high standards of perfectionists. If you are highly particular about fine details, please carefully consider whether this type of product is suitable for you. Additionally, due to the sensitive nature of replica watches, our return and exchange process is relatively complex. We kindly ask that you read and accept our policies before making a purchase.

Thank you very much for your trust and support — happy shopping!