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Description
BBF Hublot Spirit of Big Bang Rose Gold Diamonds 642.OX.0180.RX.1104
A highly capable tonneau chronograph that balances intricate movement skeletonization with precise case geometry.
Powered by Clone HUB 4700
The mechanical core of this replica is a modified Asian 7750 automatic chronograph, heavily customized to replicate the visual architecture of the genuine Zenith-based HUB 4700. BBF has invested significant tooling into the skeletonized top plates, exposing the gear train and custom date wheel to match the genuine layout. While it operates at 28,800 vph rather than the genuine’s 36,000 vph high-beat frequency, the movement provides reliable timekeeping and fully functional chronograph sub-dials.
Standard clone base movement: ±10–15 s/day. Regulation via the micrometer screw can yield tighter tolerances upon professional servicing.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: 12-hour chronograph, running seconds, skeletonized date display
- ✅ Winding Direction: Unidirectional (clockwise)
Technical Specifications
The 42mm barrel-shaped case utilizes a complex sandwich construction, integrating resin flanks with brushed and polished metal components to achieve the correct factory profile.
Features layered mechanics, applied luminous indices, and subtle warm accents. The date wheel tracks precisely along the outer perimeter.
Fitted with high-clarity synthetic stones secured firmly within the rose gold-plated housing, punctuated by six distinctively recessed H-shaped screws.
A high-density rubber strap equipped with the “one-button” quick-release system, allowing seamless changes without specialized tools.
Why BBF for This Reference?
Many collectors ask: “Why not the ZF iteration?”
BBF provides superior integration of the resin sandwich layers and a more reliable quick-change strap mechanism with tighter tolerances. Their execution of the skeletonized date wheel and bridge layout offers a closer visual match to the genuine depth than older competing versions.
Full Disclosure: Due to the robust 7750 base movement architecture, the chronograph pushers require slightly more force to actuate compared to the exceptionally smooth genuine column-wheel caliber.
Data Sheet
| MODEL REFERENCE | 642.OX.0180.RX.1104 |
| FACTORY / VERSION | BBF Edition |
| MOVEMENT | Clone HUB 4700 (7750 Base) |
| CASE MATERIAL | Rose Gold-Plated Titanium & Resin |
| WEIGHT & THICKNESS | [unconfirmed] | [unconfirmed] |
| CRYSTAL & LUME | Sapphire with AR | Super-LumiNova |
| DIMENSIONS | 42.0mm × [unconfirmed] × [unconfirmed]Manual measurements — minor tolerances apply. |
| WATER RESISTANCE | 30m stated rating — professional pressure test recommended before swimming |
Collector Q&A
Q: How does the quick-change strap system on this BBF model perform?
A: The one-button release mechanism functions accurately to the genuine, allowing secure and rapid strap swaps without the need for specialized tools. Tolerances are tight, preventing unwanted play at the lug integration.
Q: Is the clone HUB 4700 a true high-beat El Primero movement?
A: No. The replica utilizes a modified 28,800 vph Asian 7750 base with custom skeletonized top plates to simulate the visual depth of the genuine 36,000 vph HUB 4700 caliber.
Q: Are the diamonds on the bezel genuine?
A: The factory uses high-clarity synthetic cubic zirconia stones. They are precisely set to mimic the factory gem-setting geometry, providing excellent light refraction without the cost of natural diamonds.
Q: What is the primary known limitation of this specific BBF reference?
A: Due to the underlying 7750 base movement architecture, the chronograph pushers require more mechanical force to engage compared to the exceptionally smooth column-wheel mechanism found in the genuine piece.
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