Hublot Spirit of Big Bang Rose Gold Diamonds 642.OX.0180.RX.1104
Original price was: $1,599.00.$999.00Current price is: $999.00.
If you want the gem-set Spirit of Big Bang that still feels mechanically interesting, this is the one to focus on. The decision points are the rose gold-toned tonneau case with black resin side sections, the evenly laid diamond-set bezel with signature H screws, and the skeleton dial with visible chronograph layout and date. Against older alternatives, this BBF execution is especially appealing for its tighter strap-release construction and stronger skeletonized movement presentation. The detailed description matters here because this watch lives or dies by how those layers, surfaces, and functions come together.
A diamond-set bezel that still lets the watch stay technical
The first thing that decides this reference is balance. You get a bright, diamond-set rose gold-toned bezel, but the watch does not turn into jewelry-only flash. The tonneau case still reads as architectural and mechanical, with six H-shaped bezel screws, black resin side sections, and a deep skeleton dial that keeps the Spirit of Big Bang identity intact. For a buyer comparing gem-set versions, that matters: this piece keeps the dramatic bezel while preserving the layered, industrial look that makes the model worth wearing in the first place.
The bezel setting is one of the strongest reasons to choose this execution. The stones are arranged in clean rows within the rose gold-plated bezel, and the spacing looks consistent across the visible surfaces. That crisp layout works well with the brushed and polished case transitions, so the watch catches light in more than one way. Instead of relying on sparkle alone, it also gives you surface contrast, visible screw heads, and a sharply defined case frame.
The 42mm Spirit of Big Bang case is about shape as much as size
This reference uses a 42mm case with the signature barrel form, and that shape is what gives it presence. The wide upper and lower case sections, the central black resin body, and the faceted shoulders make it look compact but substantial. In rose gold-plated titanium and resin, it has the layered construction that collectors expect from this family rather than a simple one-piece case impression.
That construction is also where the BBF version earns its place. If you have looked at other takes on this model, the appeal here is not just the name of the factory but the way the sandwich case architecture is handled. The transitions between the metal-toned top surfaces and the darker side structure are a major part of the watch’s character, and this version focuses on getting that multi-part profile right. On a design this angular, those tolerances matter more than marketing language.
The skeleton dial gives this watch its depth
On the wrist, the dial is what keeps drawing you back. The layout shows a skeletonized central architecture with rose gold-toned hands and baton hour markers set against darker chapter details. The contrast is effective: bright hands and markers stay legible, while the open-worked center keeps the watch visually busy in the right way. You can see the ringed structure through the middle, along with the layered bridges and gear presentation that give the dial its depth.
The visible complication layout adds to that effect. This watch presents a chronograph display with subdials and a date aperture integrated into the skeleton format, rather than hiding them under a conventional dial. That makes it more satisfying for buyers who want something more technical than a standard three-hand luxury sports watch. It is not just about showing movement parts; it is about having a dial with real visual hierarchy, from the applied markers to the subdial frames to the angled date opening.
Clone HUB 4700 and why it suits this reference
Inside is the Clone HUB 4700 automatic movement, built on a modified 7750 base and running at 28,800 vph, with approximately 36 hours of power reserve. The important point for this model is not chasing numbers for their own sake. It is that the movement has been developed to support the skeletonized presentation that this watch depends on. On a closed dial, movement architecture is easier to hide. Here, the visual structure is part of the product, so the movement choice directly affects how convincing and engaging the watch feels through the crystal.
The chronograph layout is functional, with running seconds, 12-hour chronograph display, and date. As with many 7750-based builds, the chronograph pushers can feel firmer than on a column-wheel genuine counterpart. For experienced buyers, that is a practical ownership note rather than a deal-breaker, and it is better to know it upfront when choosing a highly styled chronograph like this.
Rubber strap, folding clasp, and everyday use
The black fluororubber strap suits the watch well because it keeps the case from becoming visually heavy. The straight ribbed pattern ties into the technical feel of the skeleton dial, while the rose gold-toned deployant clasp maintains continuity when the watch is off the wrist. This model also uses a one-button quick-release strap system, which is a genuine convenience if you like swapping styles without tools.
Crystal is sapphire with anti-reflective treatment, helping the open dial stay readable from different angles. Water resistance is stated at 30m, which is best understood as a light-use rating rather than a reason to treat the watch like a dive piece. Overall, this is the Spirit of Big Bang for the buyer who wants the dramatic diamond bezel, but refuses to give up the layered mechanical personality that makes the model worth choosing.
Watch specification
Configuration summary for this watch
| Brand | Hublot |
|---|---|
| Movement | Clone HUB 4700 automatic, 28,800 vph, approximately 36 hours power reserve |
| Case Material | Rose gold-plated titanium and resin |
| Bezel | Rose gold-plated bezel with synthetic diamond setting |
| Crystal | Sapphire with anti-reflective treatment |
| Bracelet | Black fluororubber strap with folding clasp and one-button quick-release system |
| Water Resistance | 30m stated rating |
Buyer Q&A
Questions about this Hublot watch
What makes this BBF version worth choosing over another take on the same reference?
Its standout points are the execution of the sandwich case construction, the tighter one-button strap-release system, and the stronger visual depth of the skeletonized movement layout.
What complications are present on this watch?
This reference offers a chronograph layout with running seconds, a 12-hour chronograph display, and a date display integrated into the skeletonized dial.
What should I expect from the movement feel?
The Clone HUB 4700 is an automatic movement based on a modified 7750 architecture. It supports the skeletonized chronograph layout well, but the chronograph pushers require a bit more force than a column-wheel genuine counterpart.
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