This replica big bang black 44mm in reference 301.SB.131.RX brings Hublot’s signature fusion of materials into a steel-and-ceramic package. The 44mm case pairs polished and satin-finished stainless steel with a black ceramic bezel, creating sharp visual contrast between metal and matte surfaces. A black rubber strap reinforces the sporty identity that the Big Bang line has carried since its 2005 debut, sitting comfortably on the wrist without adding unnecessary bulk. The combination positions this reference squarely in the everyday-wear segment of the collection.

Technical Overview

• Reference: 301.SB.131.RX
• Case diameter: 44mm
• Case material: stainless steel with ceramic bezel
• Dial: black with applied indices
• Crystal: sapphire with anti-reflective coating
• Strap: black rubber with deployant clasp
• Movement: automatic chronograph
• Functions: hours, minutes, seconds, chronograph, date

The steel case provides a neutral metallic base that lets the black ceramic bezel and black dial dominate the visual presentation. Applied hour markers add depth compared to printed alternatives, and the chronograph subdials follow the standard Big Bang layout with registers at three, six, and nine.

Inside the Movement

An automatic chronograph caliber drives the three-subdial configuration. The movement delivers standard timekeeping alongside a 12-hour chronograph and date complication at the four-thirty position. Power reserve sits in the 42-hour range typical for this caliber family. Pushers at two and four o’clock operate the chronograph with firm, defined clicks. For a full-steel alternative without the ceramic bezel element, look at the 45mm 301.SX.130.RX version that uses an all-steel construction. Both models sit in the Big Bang lineup but target different aesthetic preferences.

What Sets It Apart

The 301.SB.131.RX occupies the intersection of sport and material contrast. Where many Big Bang references push into exotic materials or bold color schemes, this one stays restrained. Black dial, black bezel, black strap, steel case. That simplicity actually works in its favor for daily rotation, pairing with everything from a suit sleeve to a weekend jacket. This replica big bang black 44mm delivers the core Big Bang design language without the visual volume of the louder limited editions.