This replica big bang black identifies the 301.PB.131.RX, a Big Bang that pairs Hublot’s signature case design with a rose gold bezel on a black ceramic case body, creating the kind of two-tone contrast that defines the brand’s material-fusion concept. The “PB” code indicates a combination of precious metal (rose gold bezel) with a black-finished case, and the 131 suffix points to the rubber strap with alligator-pattern overlay. The rose gold bezel carries the six H-shaped screws in matching gold tone, framing a black dial that keeps the precious-metal presence concentrated on the perimeter rather than distributed across the entire watch head.

Technical Overview

• Case material: black composite with rose gold bezel
• Reference: 301.PB.131.RX
• Bezel: rose gold with polished H-shaped screws
• Dial: black with applied rose gold indices
• Crystal: sapphire with anti-reflective coating
• Strap: black rubber with alligator-pattern overlay
• Movement: automatic
• Date: aperture at 3 o’clock

The rose gold bezel provides a warm metallic frame against the matte-black case body, and the matching gold-tone dial indices tie the bezel color into the face design for visual cohesion.

Inside the Movement

The automatic movement in the 301.PB drives time and date through a reliable caliber behind a solid caseback. The crown at three o’clock wears a black-coated finish matching the case body rather than the bezel metal, keeping the gold accents intentional rather than scattered. The rubber strap with alligator texture adds a tactile dimension that plain rubber straps do not provide, and the deployant clasp operates flush against the wrist. The 411.EX.5120.NR at 45mm takes the two-tone concept further with different material ratios across the case. Both represent the Big Bang philosophy of combining contrasting materials within a single watch.

What Sets It Apart

Two-tone Big Bangs bridge the gap between the understated all-black references and the fully precious-metal models. The 301.PB places gold only where it creates maximum visual impact while keeping the majority of surfaces dark and low-profile. This makes it a more versatile daily option than a full gold Big Bang but more distinctive than a pure ceramic or steel version. The alligator-textured rubber strap adds a dressy note without the maintenance requirements of actual leather. This replica big bang black positions the rose gold accent as the defining element of an otherwise stealth-oriented design.