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Description
BBF Hublot Big Bang Unico Sang Bleu II 45mm King Gold White
BBF successfully reverse-engineers the complex geometric time-display discs and the HUB1240 architecture without compromising case thickness.
Powered by Clone HUB 1240 Automatic
The Clone HUB 1240 automatic flyback movement is the mechanical core of this replica, specifically modified to drive the heavy Maxime Plescia-Büchi geometric hands. Unlike standard chronograph clones that use traditional pinions, this caliber utilizes an upgraded gear train to manage the immense torque required to rotate the solid octagonal discs. The skeletonized architecture is visible through the sapphire caseback, showcasing brushed bridges and a custom rotor that mirrors the Sang Bleu aesthetic.
Standard ETA/clone base movements: ±10–15 s/day. Amplitude may fluctuate slightly depending on the position of the heavy geometric discs.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Flyback chronograph, 4.5-digit hollow calendar, geometric disc time display
- ✅ Winding Direction: Unidirectional winding via custom skeletonized rotor
Technical Specifications
The 45mm case features alternating micro-blasted and polished facets, achieving the complex hexagonal profile of the Sang Bleu II. Total thickness is strictly measured at 16.6mm.
Features layered octagonal discs with a sandblasted pattern pointer and a dark green dial annotation. The 4.5-digit hollow calendar circle is precisely aligned.
Secured by Hublot’s signature H-shaped titanium screws. The micro-blasted finish on the bezel base accurately contrasts with the polished hexagonal outer edges.
Integrated white rubber strap featuring the quick-release button system. The oversized King Gold PVD deployant clasp operates with firm, tactile feedback.
Why BBF for This Reference?
Many collectors ask: “Why not WWF?”
The BBF distinguishes itself through the precise tooling of the 4.5-digit hollow calendar circle and the superior finishing on the sandblasted pattern pointer. Furthermore, BBF manages to keep the overall thickness to an accurate 16.6mm, whereas competing versions often exceed 17.5mm to accommodate the layered disc hands without crystal friction.
Full Disclosure: The King Gold PVD plating, while visually accurate in its warm tone, is susceptible to revealing the base metal if deeply scratched, and the heavy geometric disc hands introduce slight parasitic drag on the movement.
Data Sheet
| MODEL REFERENCE | 418.OX.2001.RX.MXM20 |
| FACTORY / VERSION | BBF Edition |
| MOVEMENT | Clone HUB 1240 Automatic Flyback |
| CASE MATERIAL | King Gold PVD Plated Base |
| WEIGHT & THICKNESS | 153g | 16.6mm |
| CRYSTAL & LUME | Sapphire with Anti-reflective Treatment | Super-LumiNova |
| DIMENSIONS | 45mm × 55mm × 16.6mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | 30m Stated Rating — professional pressure test recommended before swimming |
Collector Q&A
Q: How does the time display function on the BBF Sang Bleu II?
A: The watch utilizes Maxime Plescia-Büchi’s geometric disc system instead of traditional hands. The largest outer octagonal disc indicates the hours, the smaller inner octagon indicates the minutes, and the central disc spins for the chronograph seconds.
Q: Is the flyback chronograph fully functional on the Clone HUB 1240?
A: Yes, the BBF Clone HUB 1240 supports full flyback chronograph functionality, allowing the geometric seconds disc to be instantly reset to zero without needing to stop the mechanism first.
Q: How durable is the King Gold plating on the 45mm case?
A: The PVD application is robust for general wear, but as with all plated replicas, deep impacts or abrasive polishing will expose the underlying base metal. Care is required to maintain the warm King Gold tone over time.
Q: Are there any known issues with the geometric hand alignment?
A: Due to the mass of the layered octagonal discs, the movement requires high torque. This can lead to slightly lower amplitude and a reduced power reserve compared to traditional three-hand replicas. Occasional micro-stutter in the sweeping motion is a known quirk of driving this heavy handset.
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