BBF Edition — Structured Lined Rubber Strap
The Hublot Big Bang Unico 42mm reference 441.CI.1171.RX represents a significant technical hurdle in replica manufacturing, primarily due to the dial-side architecture of its movement. The BBF edition has established itself as the current benchmark by successfully cloning the HUB1280 caliber, allowing the case to maintain a highly accurate 15.4mm thickness. This is a notable departure from earlier iterations that relied on modified 7750 base movements, which inevitably resulted in an overly thick, disproportionate case profile.
Powering this piece is the clone HUB1280 automatic chronograph movement. Unlike standard decorative plates, this movement features a functional column wheel visible at the 6 o’clock position on the dial side, engaging authentically when the pushers are actuated. The skeletonized date ring also functions precisely as intended, rotating cleanly beneath the sub-dials. Power reserve is rated at approximately 36 hours, ensuring reliable daily performance when worn actively.
The micro-blasted black ceramic case delivers the correct matte, stealth aesthetic of the “Black Magic” moniker. Measuring 42mm in diameter and weighing a verified 134 grams, it offers substantial wrist presence without the overwhelming footprint of the older 45mm variants. The bezel is secured by six signature H-shaped titanium screws with polished heads, providing a sharp contrast against the matte ceramic, while the sapphire crystal features a high-clarity anti-reflective coating to minimize glare over the complex skeleton dial.
- Movement: Clone HUB1280 Automatic Chronograph — Approximately 36 hours
- Case Material: Micro-blasted Black Ceramic, 42mm diameter, 15.4mm thickness, 134g
- Bezel: Micro-blasted Black Ceramic with titanium H-screws
- Crystal: Scratch-proof sapphire with colorless AR coating
- Bracelet: Black structured lined rubber with deployant clasp
- Water Resistance: >50 meters — professional pressure test recommended before swimming
This reference is suited for collectors seeking a modern, highly technical sports watch with aggressive styling. Its 42mm footprint makes it significantly more wearable on standard wrists compared to traditional oversized Hublot models.



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