Hublot / Big Bang Unico / 441.OX.5181.RX
Hublot Big Bang Unico King Gold 42mm 441.OX.5181.RX Super Clone Watch
$1,350.00 Original price was: $1,350.00.$1,029.00Current price is: $1,029.00.
The warm King Gold Unico without a ceramic color block
The 441.OX.5181.RX keeps the Big Bang Unico personality in a compact 42mm case, then uses blue dial and strap details to break up the warm case tone. The result is easier to style than a fully saturated ceramic colorway while remaining visibly technical. Choose it when proportion and blue accents matter more than a blue ceramic bezel.
the compact blue-and-gold Unico format
This Big Bang Unico 42mm reference 441.OX.5181.RX pairs a King Gold PVD plated 316L steel case with a blue structured lined rubber strap and matching blue dial accents. Inside is the Clone HUB1280 automatic movement with flyback chronograph, date display, and a visible column wheel at 6 o’clock. The warm case and blue details offer an alternative to blue ceramic while retaining the dial-side chronograph layout.
Confirmed configuration
- Movement
- Clone HUB1280 automatic flyback chronograph
- Case Material
- King Gold PVD plated 316L steel
- Bezel
- Vertical satin-finished King Gold with 6 H-shaped titanium screws
- Crystal
- Sapphire with colorless anti-reflective treatment
- Bracelet
- Blue structured lined rubber with King Gold deployment buckle
- Water Resistance
- 30M stated
Big Bang Unico 42mm in King Gold and Blue
The Hublot Big Bang Unico King Gold 42mm 441.OX.5181.RX brings the Unico layout into a more compact 42mm case while keeping the model’s layered construction and open-worked presentation. This version uses a King Gold PVD plated 316L steel case and a blue structured lined rubber strap, creating a clear contrast between the warm-toned case and the blue details across the watch.
The case follows the Big Bang multi-component sandwich design and is finished in King Gold PVD. Across the top, the fixed bezel uses a vertical satin finish and is secured with six H-shaped titanium screws. The overall result is a clearly mechanical, architectural look that stays faithful to the reference’s mixed-material character.
Skeleton Dial With Blue Accents
The dial is built around a skeletonized layout that leaves key elements of the watch visible from the front. Blue satin-finished accents appear on the sub-dial details and flange markers, setting the tone for the reference and tying the dial to the blue rubber strap. The exposed layout also reveals the date wheel and portions of the gear train, giving the watch a more technical visual structure than a closed dial execution.
One of the defining details on this configuration is the visible column wheel positioned at 6 o’clock on the dial side. That placement is part of what distinguishes the movement architecture on this model and gives the chronograph operation a more explicit visual presence when the watch is in use.
Clone HUB1280 Flyback Chronograph
Powering the watch is the Clone HUB1280 automatic movement, built to reproduce the Unico-style integrated flyback chronograph format. The movement includes a flyback chronograph, date, and dial-side column wheel, with bidirectional automatic winding and an approximate 36-hour power reserve. The flyback function allows the running chronograph to reset and restart with a single press of the 4 o’clock pusher.
This integrated layout is central to the character of the watch. Instead of presenting the chronograph as an added module, the HUB1280 keeps the complication native to the movement architecture, which supports the open dial arrangement and the visible chronograph components seen from the front.
Sapphire Crystal and Rubber Strap Setup
The watch is fitted with a sapphire crystal featuring colorless anti-reflective treatment. That keeps the dial side clear and supports the layered view into the skeletonized construction. The case is paired with a blue structured lined rubber strap and a King Gold deployment buckle, maintaining the same color and material balance established by the case and dial.
This reference stands out through its specific combination of 42mm sizing, King Gold PVD case construction, blue skeleton dial accents, and the Clone HUB1280 flyback chronograph movement. For buyers looking for the Unico format with visible chronograph architecture and a blue-and-gold configuration, this model is a direct and well-defined option.
Questions to settle before ordering
What movement is used in the Big Bang Unico 42mm 441.OX.5181.RX?
It uses the Clone HUB1280 automatic movement with flyback chronograph, date display, bidirectional winding, and a visible column wheel at 6 o’clock.
Is the flyback chronograph functional on this model?
Yes. The flyback function allows the chronograph to reset and restart with a single press while it is running.
Review the exact configuration before it leaves.
Use model-specific QC proof to confirm the visible details and stated functions that informed your choice.
QC proof before dispatch
