Hublot Square Bang Unico 821.CX.0140.RX Black Ceramic Chronograph 42mm

The Hublot Square Bang Unico 821.CX.0140.RX is a watch that refuses to play by the usual rules of luxury watchmaking. While most high-end chronographs stick to round cases, Hublot takes a sharp turn with its bold square design without sacrificing performance, mechanics, or presence on the wrist.

The 42mm case is crafted from black ceramic, a material chosen not just for its stealthy look but for real-world durability. Ceramic is lightweight, highly scratch-resistant, and keeps its deep black color over time. The square geometry gives the watch a modern, architectural feel, while the brushed and polished finishes prevent it from looking flat or overly industrial.

At the heart of this model beats the HUB1280 Unico manufacture movement, an automatic flyback chronograph developed in-house by Hublot. This movement is visible through the open-worked dial, where mechanics aren’t hidden they’re part of the design. You can see the column wheel, the chronograph architecture, and the layered structure that gives the watch its depth. With a 72-hour power reserve, it’s built for real use, not just admiration.

The chronograph layout is clean and functional, making the Square Bang Unico surprisingly readable despite its skeletonized dial. The black rubber strap completes the look comfortable, flexible, and perfectly matched to the case. This is not a dress watch pretending to be sporty. It’s unapologetically modern, technical, and bold.

The Hublot Square Bang Unico 821.CX.0140.RX is ideal for collectors who already own classic round chronographs and want something different something that stands out without shouting. It’s a watch that feels contemporary today and will still look futuristic years from now.