This replica Big Bang 1180 42mm combines King Gold with a diamond-set bezel in the compact 42mm Unico case, creating a piece that merges precious metal warmth with stone-set brilliance. The 441.OX.1180.RX.0904 uses Hublot’s proprietary gold alloy for the case and crowns it with diamonds along the bezel perimeter. The 42mm diameter keeps the proportions moderate despite the dual luxury of gold and stones, offering a size that works across dressy and smart-casual contexts alike.

Case & Movement Specs

• Case diameter: 42mm
• Case material: King Gold (18K proprietary rose gold alloy)
• Bezel: King Gold with diamond setting (0904 configuration)
• Crystal: sapphire with anti-reflective coating
• Dial: skeletonized Unico chronograph
• Strap: rubber with King Gold deployment clasp
• Movement: automatic chronograph (Unico platform)
• Functions: hours, minutes, flyback chronograph, date

King Gold adds platinum to the standard rose gold recipe, stabilizing the warm hue against color shifting over time.

Caliber Breakdown

The Unico movement visible through the skeletonized dial operates a column-wheel flyback chronograph with the timing mechanism displayed on the dial side. Pushers at 2 and 4 o’clock engage with a tactile click, and the flyback function resets the chronograph hand to zero and restarts in a single push. King Gold chronograph pushers match the case material, maintaining visual continuity around the entire case perimeter. For a different approach to the same base architecture, consider the Sang Bleu II 418.HX.2001.RX in white ceramic, which abandons traditional round design entirely. Both references occupy different corners of the Big Bang collection but share the same commitment to visible mechanics.

How It Compares

The 42mm King Gold diamond Unico sits at the intersection of several Big Bang sub-categories: precious metal, gem-set, and skeletonized chronograph. Compared to the 45mm gold Unico references, the smaller diameter shifts the wearing experience from bold to refined. The diamond bezel adds light refraction that the plain gold bezel models lack, drawing the eye upward along the case profile. On the wrist, King Gold at 42mm weighs more than titanium but less than a full-gold 45mm piece, striking a balance between substance and comfort. This replica Big Bang 1180 42mm packs precious metal, diamonds, and the full Unico chronograph into a case size that does not demand a large wrist.