The Hublot Big Bang Unico Sapphire Rainbow (Ref. 441.JX.4802.RT.4099) combines futuristic clear sapphire crystal architecture with rich rainbow gem-setting. HB Factory delivers a fine 1:1 Super Clone edition, accurately replicating the complex 42mm transparent sapphire case body, radiant rainbow gradient bezel inlay, openwork skeleton dial mechanics, transparent rubber strap, and smooth-operating HUB1280 automatic mechanical chronograph movement.
Key Features & HB Factory Upgrades
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Clear Sapphire Crystal Case (42mm): Ergonomic 42mm round casing carved from high-transparency synthetic sapphire crystal, offering complete optical clarity from every side.
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Rainbow Gem-Set Bezel: Bezel hand-set with vibrant baguette-cut rainbow gradient crystals secured by 6 H-shaped titanium screws.
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Transparent Openwork Skeleton Dial: Skeletonized dial architecture revealing the intricate mechanical components, date disc, small seconds counter at 9 o’clock, and 60-minute chronograph counter at 3 o’clock.
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Double AR-Coated Sapphire Glass: Custom-molded scratch-resistant front sapphire crystal treated with anti-reflective coating on both sides for maximum readability.
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Reliable Asian HUB1280 Automatic Movement: Powered by a proven self-winding mechanical chronograph movement offering working timing pushers and smooth sweeping seconds.
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Transparent Lined Rubber Strap: Clear structured rubber strap equipped with Hublot’s quick-release system and a titanium deployment buckle.
Technical Specifications
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Model Reference: Hublot Big Bang Unico Sapphire Rainbow Ref. 441.JX.4802.RT.4099
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Factory: HB (HB Factory)
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Case Diameter: 42 mm
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Case Material: Polished Clear Sapphire Crystal
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Bezel: Titanium Bezel Set with Baguette-Cut Rainbow Gradient Gemstones
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Dial: Transparent Matte Skeleton Dial with Arabic Numerals & Chronograph Counters
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Movement: Asian HUB1280 Automatic Mechanical Chronograph Movement (28,800 vph)
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Glass: Double AR-Coated Scratch-Proof Sapphire Crystal
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Strap: Transparent Lined Rubber Strap with Titanium Clasp
Why Choose the HB Big Bang Unico Sapphire Rainbow 441.JX.4802.RT.4099?
The Big Bang Unico Sapphire Rainbow Ref. 441.JX.4802.RT.4099 is one of the most exclusive and visual statement pieces in modern high horology. HB Factory’s transparent sapphire machining, precise rainbow gem setting, and reliable HUB1280 movement make this 1:1 super clone a standout addition for watch collectors.
Frequently Asked Questions (FAQ)
Q: Is the case made of genuine clear sapphire material? A: Yes, HB Factory utilizes high-transparency synthetic sapphire crystal to replicate the all-transparent look and feel of the original reference.
Q: Are the chronograph stopwatch pushers functional? A: Yes, HB Factory’s HUB1280 automatic movement drives fully functional timing pushers at 2 o’clock and 4 o’clock, controlling the central timing seconds hand and 3 o’clock counter.
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