HBF Factory Hublot Big Bang Unico V2 Review: Sky Blue Ceramic and HUB1242 Flyback

HBF Factory Hublot Big Bang Unico V2 Super Clone; It is the factory's most mature release to date, with a sky blue high-tech ceramic bezel, a multilayer sandwich case fixed with H-shaped titanium screws, a double AR-coated sapphire glass, and a modified HUB1242 automatic chronograph movement that retains the instant start and single-button flyback function.

The Big Bang is one of the most difficult modern luxury watches to replicate; because the difficulty is not in a single piece, but in all the interlocking layers. Hublot's "fusion" philosophy constructs the case not as a single block, but as a sandwich consisting of a steel body, composite resin side wings, ceramic bezel and titanium screws. The tolerance between these layers works cumulatively: when the one-tenth deviations left at each interface overlap, the profile of the watch is distorted, the bezel does not fit and the pushers do not move perpendicular to the axis. For this reason, marketed replicas often cast the case in one piece and add fake screw heads on it.

In this revision, called V2, HBF Factory has reproduced the layer architecture in a truly detachable form, starting from the imported 316L stainless steel case body. On the movement side, instead of a decorative shell, a modified 7750 based HUB1242 automatic chronograph is used; The instant chronograph start and single-button flyback function have been designed to work as in the original. We reviewed the watch under seven headings, putting it side by side with the original reference and a standard market clone.

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1. Sky Blue High-Tech Ceramic Bezel and Skeleton Dial Comparison

Hublot On the front side of the Big Bang, two separate material problems must be solved simultaneously. The first is the tone of colored high-tech ceramics: sky blue is one of the colors most prone to shift in the sintering temperature of the pigment, and in ordinary replicas it drops either to purple or to a gray-blue tone. The color of the bezel used by HBF Factory remains at the same light blue saturation in daylight and artificial lighting, and the surface retains its matte-satin texture and does not shine. The chamfering on the ceramic edges is sharp and of equal depth.

• İkinci problem kadranın derinliğidir: Big Bang Unico kadranı tek bir plaka değil, üst üste binen halkalar, köprüler ve açıkta bırakılmış mekanizma bölgelerinden oluşan çok katmanlı bir yapıdır. Bu katmanların her biri farklı yükseklikte olduğu için çift AR kaplamalı safir cam altında bakıldığında gölgelenme yaratır. İncelenen örnekte iskelet kadranın katman aralıkları orijinaldeki gibi açık bırakılmış, indeksler kadrana değil üst halkaya perçinlenmiş ve H şekilli titanyum bezel vidaları saat 12 hizasında doğru açıyla hizalanmıştır. Sıradan bir replikada bu bölgede en hızlı ele veren detay vidalardır: başları gerçek H profili yerine yuvarlatılmış artı şeklinde basılır ve tümü rastgele açılarda durur. Burada altı vidanın da eksenleri kasaya dik ve birbirine paralel biçimde konumlandırılmıştır.

2. Case Profile, Ergonomic Chronograph Pushers and Rubber Coated Crown

The side view of the Big Bang is the most expensive part of replicating the model. The case profile is not flat; It is a stepped section where polished and satin surfaces are separated by a sharp border. In this body, which is machined from imported 316L stainless steel, the shiny areas are brushed in mirror quality and the satin areas are unidirectional and evenly brushed; There is no blurring or overflow at the lines where the two textures intersect. In commercially available clones, this border is usually rounded with a polishing felt, thus losing the characteristic muscular silhouette of the watch. Chronograph pushers are not round as in the original, but rectangular and with an ergonomic profile. The pressing feeling is short stroke and clear; Thanks to the instant chronograph start, the second hand moves without getting stuck as soon as the button is pressed. The rubber-coated winding crown not only gives the soft grip of the original to the touch, but also does not leave a gap when placed on the case shoulder.

3. Sandwich Case Architecture: Composite Resin Wings and Titanium Screws

The structure that defines the Big Bang is the layered assembly of the casing. Composite resin wings are placed on both sides of the steel middle body, the bezel sits on top of them and the whole package is tightened with titanium fixing screws. The real challenge of production in this architecture is to achieve a light-tight fit at the interfaces of materials with different expansion coefficients. In the example examined, the junction line between the resin wings and the steel body is of constant thickness and does not feel like a step when run over with a fingernail. The highlight of HBF Factory's V2 revision is that these layers are actually removable. The screws are functional, not decorative, and when torque is applied the layers separate in the original order. In ordinary replicas, the same appearance is achieved with fake wings glued to a one-piece cast case; This disrupts both the weight distribution and the fit on the wrist.

4. Modified HUB1242 Automatic Chronograph and Single Pusher Flyback

At the technical core of the watch is the HUB1242 automatic chronograph movement, reworked based on the base 7750. The purpose of the modification is not only visual similarity, but also functional matching: the chronograph starts instantly and can flyback with a single button. In flyback, the counter returns to zero and starts counting again, without stopping the hour-minute hands; This is a grasping behavior that cannot be imitated in cheap clones. When viewed through the transparent sapphire case back, the finishing in the skeleton rotor and column wheel area can be seen.

• Fabrikanın vurguladığı ikinci iyileştirme: ağırlık takviyesidir. Rotor ve balans grubundaki kütle dengesinin yeniden ayarlanması, mekanizmanın darbe ve konum değişimlerinde daha kararlı çalışmasını sağlamakta; bu da hem günlük hassasiyeti hem de servis sıklığını doğrudan etkilemektedir. Pratikte bu, kronograf çalışırken ana zaman göstergesinin genliğinde belirgin düşüş yaşanmaması anlamına gelir — ki sıradan replikalarda kronograf devreye girer girmez günlük sapma iki katına çıkar.

5. Vulcanized Natural Rubber Belt and H Shaped Connecting Screws

Hublot rubber is a material that stands out in the industry with its texture: vulcanized natural rubber gives a more matte, denser and fingerprint-proof surface than silicone. In the example examined, the belt has this character; The pattern on the surface comes out sharp without leaving mold marks, and the section edges look smooth as if they were shaved. The softness of the material quickly settles at wrist temperature, and there are no folding wrinkles in the part of the strap close to the case. The point where the strap connects to the case is part of the aesthetics at Big Bang. H-shaped titanium connecting screws are both visible and carrier; Therefore, the depth of the screw heads, the angle of fit of the belt ears and the clearance tolerance are directly noticeable. Here, the screws fit snugly into the slot, and the belt does not rattle or play when forced laterally.

6. Folding Clasp with Titanium and Ceramic Body

The buckle is the most frequently neglected but most used part in replica evaluation. In this version, the buckle body is produced with a combination of titanium and ceramic; The Hublot emblem is deep laser engraved rather than printed or superficial engraving. The sharpness of the letter edges is preserved under magnification, and there are no traces of dust or burning on the engraving base. The double safety spring mechanism gives a clear two-stage click when closing, and when opening, the spring tension returns without weakening. The most common problem with commercially available buckles is that the coating peels off from the corners within a few months and the safety spring loosens and opens on its own. While the titanium body eliminates this risk at the material level, it also brings the total weight of the watch felt on the wrist closer to the balance of the original.

7. Dial Macro Analysis: Chronograph Counter and Exposed Date Disk

We made the final check via macro shot of the dial. When the ring edge, graduation print and axis center of the counter hand are examined under magnification on the 60-minute chronograph counter, there is no overflow or ink accumulation on the edges of the prints. The tip of the meter arm falls right on the graduation ring, and is neither short nor exceeding the ring as in the original. One of Big Bang Unico's signature details is that the date disc is left exposed along with its gears. This area requires surface finishing at the micron level; because a component that should remain under the dial becomes directly visible. In the example examined, the edges of the gear teeth are broken evenly, and the disc surface is processed in harmony with the layer colors of the dial. In ordinary replicas, this area is usually covered by a flat printed print and the depth is completely lost.

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General Evaluation

HBF Factory's V2 version stands out in its segment because Hublot treats Big Bang Unico as a structure, not an image. The fact that the layered case is truly detachable, the H-shaped titanium screws function, and the sky blue ceramic maintains color stability, ensures that the watch retains its original character both at first glance and under magnification. The rubber strap and titanium-ceramic buckle are the components that make up the difference in daily use.