This replica big bang rx wraps the full 301.PX.130.RX reference in Hublot’s proprietary king gold, a rose gold alloy with a higher platinum percentage that resists color fading over time. At 45mm, the warm case metal contrasts sharply against a black rubber strap and dark dial, producing the dressy-sport balance that made the Big Bang famous. King gold gives this version a richer, more saturated tone than standard 18K rose gold, and that warmth carries across the bezel, crown, and deployment buckle. The proportions run bold, but the rubber strap integration keeps the visual weight grounded.

Key Specifications

• Case diameter: 45mm
• Case material: king gold (proprietary 18K rose gold alloy)
• Bezel: king gold with 6 H-shaped titanium screws
• Crystal: sapphire with anti-reflective coating
• Dial: black with applied luminous indices
• Strap: black rubber with king gold deployment buckle
• Movement: automatic chronograph
• Functions: hours, minutes, seconds, chronograph, date

Hublot developed king gold specifically to resist the color fading that affects standard rose gold. The alloy maintains its warm copper tone significantly longer, which matters on a piece where the entire case surface is precious metal.

Design & Finishing

The finishing transitions between polished flanks and satin-brushed top surfaces across the case and bezel. This interplay catches light differently depending on the angle, adding dimension that a single-finish case cannot match. Three chronograph subdials sit against the dark dial at 3, 6, and 9. The date window at 4:30 uses a color-matched surround to keep the layout clean. If the full gold presence feels like too much, the Unico 441.RX.1170.RX.1704 offers a steel-and-diamond alternative with a different kind of visual punch. Both live within the Big Bang collection but serve very different aesthetics.

On the Wrist

King gold at 45mm creates a substantial wrist presence that reads clearly as a statement piece. The rubber strap softens the formality though, pulling the watch back from pure jewelry territory into something you can wear with a casual blazer or even weekend denim. The warmth of the gold plays well against darker skin tones especially. This replica big bang rx puts that proprietary alloy and its distinctive aging resistance within reach for collectors who want the full precious-metal Big Bang experience.