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Description
BBF Factory Hublot Big Bang Unico 42mm King Gold Diamonds 441.OX.1181.RX.1104
A technically proficient replication of the UNICO architecture, offering genuine flyback functionality and accurate 60-minute chronograph tracking.
Powered by Custom Clone HUB1280
BBF has engineered this caliber to closely mirror the structural layout of the genuine Hublot movement, marking a notable departure from the thick and mechanically limited 7750 modifications of the past. The inclusion of a functioning column wheel on the dial side and a full 60-minute counter at the 3 o’clock position represents a substantial leap in replica chronographs. The flyback mechanism operates smoothly, allowing the user to reset the seconds hand to zero while the chronograph is actively running.
Rated at ±10–15 s/day for this complex clone movement. Regulation is performed via the balance bridge, ensuring acceptable daily variance for a mechanical chronograph of this complexity.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Flyback chronograph, 60-minute counter, skeletonized date display
- ✅ Winding Direction: Unidirectional winding rotor
Technical Specifications
Measured precisely at 15.4mm thick, the case balances the heavy gold plating with a substantial 180.4g total weight. The alternating brushed and polished finishing mimics the genuine case profile.
Complex open-working reveals the date wheel mechanism, maintaining sharp legibility against the background. The 3 o’clock subdial integrates the 60-minute counter and date window seamlessly.
Precision-set synthetic diamonds designed to mimic the light dispersion of the genuine, secured via Hublot’s signature H-shaped titanium screws with correct flush alignment.
Features the proprietary quick-release system for easy swapping, secured by a ceramic and King Gold plated deployant clasp with crisp locking tolerances.
Why BBF for This Reference?
Many collectors ask: “Why not HB Factory?”
BBF’s primary advantage lies in the bespoke HUB1280 clone movement. While earlier iterations and competing factories relied on a decorated 7750 that resulted in an overly thick case and incorrect 30-minute subdials, BBF achieves a verified 15.4mm thickness and a mechanically correct 60-minute counter.
Full Disclosure: The King Gold plating, while visually accurate in its red-gold hue, will eventually show wear under heavy daily use, and the synthetic diamonds lack the exact refractive index of genuine stones under high magnification.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 441.OX.1181.RX.1104 |
| FACTORY / VERSION | BBF Edition |
| MOVEMENT | Custom Clone HUB1280 Flyback |
| CASE MATERIAL | 316L Steel / 18K King Gold Plated |
| WEIGHT & THICKNESS | 180.4g | 15.4mm |
| CRYSTAL & LUME | Sapphire with Double AR | Super-LumiNova |
| DIMENSIONS | 42mm × 52mm × 15.4mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | 30m stated rating — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the flyback function work exactly like the genuine Hublot UNICO?
A: Yes, the BBF HUB1280 clone movement features a true flyback chronograph. You can press the reset pusher at 4 o’clock while the chronograph is running, and the seconds hand will instantly snap back to zero and restart without needing to be stopped first.
Q: How accurate is the ‘King Gold’ color on this BBF replica?
A: BBF has done an excellent job matching Hublot’s proprietary King Gold, which has a distinctively redder hue than standard 18K rose gold due to the inclusion of platinum in the genuine alloy. However, as it is plated over 316L steel, it will not carry the solid gold mass.
Q: Are the dimensions 1:1 with the genuine 42mm Unico?
A: The diameter is an accurate 42mm. The thickness has been verified at 15.4mm, which is an impressive technical achievement over older 7750-based replicas, bringing it extremely close to the genuine profile. The overall weight is 180.4g.
Q: What is the main durability concern with this specific model?
A: The primary concern is the longevity of the 18K King Gold plating on high-wear areas like the deployant clasp and lower case edges. Additionally, the complex flyback clone movement requires careful handling; avoid resetting the chronograph near the date-change window (10 PM to 2 AM) to prevent mechanical stress.
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