Hublot Shaped Square Bang Unico King Gold Blue 42mm 821.OX.5180.RX - BRAND NEW

The Hublot Square Bang Unico 821.OX.5180.RX is one of the most architecturally daring luxury sports watches available today, translating the iconic round Big Bang DNA into a bold square silhouette that challenges every convention of traditional horology. At 42mm in Hublot's proprietary King Gold — a rose-gold alloy developed exclusively by the Hublot metallurgy team for superior scratch resistance and a distinctively rich warm tone — this reference occupies the sweet spot between statement piece and daily companion. The blue index dial adds a refined chromatic counterpoint to the golden warmth of the case, a pairing that reads equally well in boardroom and resort settings.

Hublot introduced the Square Bang as a deliberate evolution of the Big Bang family, extending the brand's Art of Fusion philosophy beyond round cases and into the realm of architectural geometry. The squared case retains the signature visible screws, porthole-style bezel, and structural sandwich construction that made the Big Bang a modern icon, yet the new silhouette carries its own strong presence on the wrist. Reference 821.OX.5180.RX distills this vision into a 42mm format that wears accessibly without sacrificing visual authority.

The blue dial of the 821.OX.5180.RX is rendered with index hour markers that complement the King Gold case without overwhelming the legibility of the watch. The King Gold bezel echoes the case material, creating a seamless monolithic appearance in precious metal, while the supple rubber strap grounds the watch in Hublot's signature sporting sensibility and ensures exceptional wearing comfort across long periods. The result is a watch that is simultaneously jewel-like and athletic.

Powering the Square Bang Unico is an automatic movement — the Unico designation signals Hublot's in-house manufacture caliber family, a movement architecture Hublot developed to assert true watchmaking independence. In-house movements like the Unico demonstrate a level of vertical integration that places Hublot alongside the most serious manufacture houses in Swiss horology, meaning owners enjoy both brand prestige and genuine mechanical credibility. This reference is delivered brand new, ensuring the movement is pristine and covered under full manufacturer warranty.

On the wrist, the 42mm Square Bang Unico in King Gold commands a presence that is unlike almost any other luxury sports watch in its price class. The warm glint of King Gold against the blue dial creates a visual tension that draws the eye and rewards close inspection, while the rubber strap keeps the overall feel modern and wearable rather than stiff or ceremonial. Whether worn as a primary statement watch or as the bold choice in a serious collection, the 821.OX.5180.RX delivers.

Bizak & Co. is pleased to offer reference 821.OX.5180.RX brand new, complete with original box and papers, at the most competitive price available. Our team of watch specialists is on hand to answer every question, assist with authentication confidence, and facilitate a seamless purchase experience whether you are buying in person or online at bizakandco.com. Contact Bizak & Co. today to secure this exceptional Hublot Square Bang Unico King Gold Blue before availability changes.