This replica big bang 1180 pairs the Unico flyback chronograph engine with a mango gold case at 45mm, referencing 411.OM.1180.RX. Mango gold is a Hublot-exclusive alloy that blends yellow gold with copper to produce a warm yellow tone sitting between traditional yellow gold and rose gold. The OM designation identifies this alloy specifically. Unlike king gold’s pink-copper warmth, mango gold leans brighter and more saturated, giving the case a character apart from any standard precious metal.

Case & Movement Specs

• Case diameter: 45mm
• Case material: 18K mango gold (Hublot proprietary yellow gold alloy)
• Bezel: mango gold with 6 H-shaped titanium screws
• Crystal: sapphire with anti-reflective treatment
• Dial: skeleton showing Unico caliber components
• Strap: rubber with mango gold deployment clasp
• Movement: Unico automatic flyback chronograph
• Functions: hours, minutes, flyback chronograph, date, visible column wheel

The mango gold alloy was developed specifically for Hublot’s material-fusion philosophy. Its yellow-warm tone differs noticeably from both king gold and standard 18K yellow gold under direct light.

Caliber Breakdown

The Unico movement inside this 411.OM uses a column wheel visible through the skeleton dial at 6 o’clock and a flyback chronograph coupling at 12 o’clock. Power reserve sits around 72 hours from a single barrel. The 28,800 vph frequency provides smooth seconds-hand sweep across both the central chronograph hand and the running-seconds subdial at 9 o’clock. The rubber strap uses a color-matched deployment clasp in mango gold, maintaining material continuity. Compare this against the titanium 411.NX.1117.LR.0999 to see how radically different the same 45mm Unico platform can look when the case material changes. Both are available in the Big Bang range.

How It Compares

Mango gold occupies a niche between the cool industrial look of titanium Unicos and the warm formality of king gold versions. It reads as gold unmistakably, but the yellow shift creates a different mood than the pink-toned king gold references. On the wrist, 45mm in precious metal carries real weight that you notice throughout the day. The rubber strap integration tempers that heft somewhat. For buyers scanning the Unico lineup, the 411.OM offers a color that no other luxury brand currently produces in this configuration. This replica big bang 1180 puts that exclusive alloy option into the equation for anyone building a serious collection.