This replica Big Bang 1171 delivers the Unico chronograph in a titanium case without diamond embellishments, presenting the skeletonized movement architecture in its most technically focused form. The 441.NX.1171.RX uses the same fundamental case construction as diamond-set variants but strips away the stones, leaving brushed titanium surfaces and the signature six H-shaped bezel screws fully exposed. Hublot positioned this reference as the entry into the modern Unico family, where the movement visibility and chronograph function take center stage.

Technical Overview

• Case diameter: 42mm or 45mm (441 series)
• Case material: satin-finished titanium
• Bezel: titanium with six H-shaped screws
• Crystal: sapphire with anti-reflective treatment
• Dial: open-worked Unico chronograph layout
• Strap: black rubber with titanium folding clasp
• Movement: automatic chronograph (Unico column wheel)
• Functions: hours, minutes, flyback chronograph, date

Titanium offers the best strength-to-weight ratio in the Big Bang material roster. Satin-finishing across the case and bezel creates a uniform matte surface that resists fingerprints better than polished alternatives.

Inside the Movement

The Unico architecture places its column wheel on the dial side, making the chronograph mechanism part of the visual experience rather than hiding it behind a caseback. Through the skeletonized openings, the coupling lever, reset hammer, and column wheel teeth are all visible during operation. The flyback function allows instant chronograph restart without cycling through stop-reset-start, a complication that adds practical value for sequential timing. The Sang Bleu II 418.EX.5107.RX wraps a similar movement in geometric Sang Bleu case architecture for a dramatically different visual outcome. The full Big Bang catalog shows how the same caliber platform adapts across dozens of material and design combinations.

What Sets It Apart

Without diamonds, ceramic, or precious metals drawing the eye, the titanium 1171 puts focus squarely on mechanical content. The movement fills the dial opening, and the chronograph operation becomes the primary visual event on the wrist. Titanium wears lighter than steel and significantly lighter than gold, making full-day wear comfortable even at this case diameter. The neutral grey tone of satin titanium pairs equally well with rubber, leather, or textile straps if you choose to swap. This replica Big Bang 1171 represents the Unico concept reduced to its essentials, mechanical spectacle in a case material that prioritizes wearability over opulence.