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BBF Edition — Quick-Release Blue Rubber Strap

The BBF iteration of the Hublot Square Bang Unico represents a significant technical milestone in replica case geometry. By successfully machining the multi-layered 42mm square titanium case to exact OEM tolerances, BBF has established the benchmark for this distinctive silhouette. The complex bridge-shaped sapphire crystals fit seamlessly into the chassis, ensuring proper water resistance and structural integrity.

Powered by the meticulously engineered Clone HUB1280 automatic caliber, this piece features a fully functional chronograph with a visible column wheel positioned accurately at 6 o’clock. The fully hollowed calendar ring integrates seamlessly into the movement architecture, replacing the traditional dial plate and delivering approximately 36 hours of power reserve.

Crafted from solid titanium, the 42mm by 16mm case offers an exceptional strength-to-weight ratio alongside precise brushed and polished alternating finishes. The skeleton dial is accented with deep blue (#003A70) elements, perfectly matching the textured rubber strap derived from the Big Bang series.

• Movement: Clone HUB1280 Automatic Chronograph — Approximately 36 hours
• Case Material: Solid Titanium, 42mm diameter, 16mm thickness
• Bezel: Solid titanium with signature H-shaped titanium screws
• Crystal: Bridge-shaped scratch-proof sapphire with AR coating
• Bracelet: Textured blue rubber strap with one-button quick-release system
• Water Resistance: >50 Meters — professional pressure test recommended before swimming

Ideal for the collector seeking a high-impact, avant-garde horological statement without the heft of traditional stainless steel. The combination of lightweight titanium and the proprietary quick-release strap system ensures superior ergonomics for daily wear.

BBF Factory Edition (Structured Rubber Strap)

• Movement: Clone HUB1280 Automatic Chronograph with visible skeleton mechanics
• Case & Band: 18k King Gold Plated & Black Ceramic Case on a Structured Rubber Strap
• Crystal: Sapphire Crystal with Colorless Anti-Reflective Coating
• Power Reserve: Approximately 36 hours

✔ 100% Customs Clearance Guaranteed. Free replacement if seized.

BBF Factory Edition (Structured Lined Rubber Strap)

• Movement: Exclusive HUB4700 Auto Chronograph Clone with a 1:1 skeletonized date ring.
• Case & Band: Authentic Grade 5 Titanium Tonneau Case with a 1:1 “One-Click” quick-release strap system.
• Crystal: Scratch-resistant Sapphire crystal with colorless anti-reflective coating.
• Super Clone Feature: The only version on the market to perfectly replicate the feather-light multi-layer case construction and exact gear train aesthetics of the genuine.

100% Customs Clearance Guaranteed. Free replacement if seized.

BBF Edition — Structured Lined Rubber Strap

The BBF execution of the Spirit of Big Bang 642.OM.0180.RX stands as the current benchmark for this tonneau-cased reference. Collectors prioritize this specific factory for its precise replication of Hublot’s proprietary King Gold hue and the complex multi-part case geometry that lesser factories often simplify.

Powered by the Clone HUB 4700 automatic movement, this piece utilizes a heavily modified architecture to mimic the genuine skeletonized layout. While the genuine relies on an El Primero base, this clone adapts a reliable Asian 7750 foundation, delivering full chronograph functionality. Power reserve is rated at Approximately 36 hours.

The 42mm case pairs King Gold-plated 316L steel with a micro-blasted black ceramic bezel, secured by signature H-shaped titanium screws. The skeletonized dial, featuring subtle dark contrast tones, offers deep visual depth and sharp date-wheel printing.

• Movement: Clone HUB 4700 Automatic — Approximately 36 hours
• Case Material: 316L Steel with King Gold PVD, 42mm diameter
• Bezel: Micro-blasted black ceramic, 1:1 genuine color match
• Crystal: Sapphire with Anti-reflective Treatment
• Bracelet: Structured lined black rubber with deployant clasp
• Water Resistance: 30m stated rating — professional pressure test recommended before swimming

This reference suits collectors seeking high-impact avant-garde horology without the compromises common in earlier tonneau replicas. It commands presence on the wrist while maintaining accurate case proportions.

BBF Edition — Quick-Release Fluororubber Strap

The BBF execution of the Spirit of Big Bang 642.NX.0170.RX.1704 represents a significant technical milestone in tonneau-case replicas. Historically, barrel-shaped Hublot clones suffered from incorrect lug geometry and poorly integrated skeleton dials, but BBF has rectified these dimensional inaccuracies to match genuine factory tolerances. The complex sandwich case construction utilizes precisely machined titanium and resin components secured by the signature H-shaped screws.

At the core of this reference is the Clone HUB 4700 automatic movement, which successfully replicates the high-frequency skeletonized chronograph module of the original. Unlike older modified 7750 base calibers that merely decorated the top plate, this movement features functional date wheel skeletonization and correct sub-dial spacing. As per standard replica mechanical profiles, it delivers a power reserve of approximately 36 hours.

The 42mm titanium case is meticulously set with synthetic pavé stones that closely approximate the dispersion of factory diamonds, though lacking the ultimate refractive index of VVS natural stones. The sapphire dial, featuring deep green text annotations on select variants, provides an unobstructed view of the movement gear train, protected by a sapphire crystal with dual anti-reflective treatment. The proprietary one-button quick-release system on the lugs operates with satisfying tactile feedback, allowing seamless transition to the customized fluororubber strap.

• Movement: Clone HUB 4700 Automatic Chronograph — Approximately 36 hours
• Case Material: Grade 5 Titanium with Pavé CZ setting, 42mm diameter
• Bezel: Titanium with Pavé setting, secured by six H-shaped screws
• Crystal: Sapphire with Anti-reflective Treatment
• Bracelet: Customized Fluororubber Strap with Quick-Release and Original Folding Clasp
• Water Resistance: 30m Stated — professional pressure test recommended before swimming

This piece caters to collectors who appreciate avant-garde horology and high-impact visual design. It requires a confident wrist and serves primarily as a statement sports chronograph rather than a subtle dress watch.