In 2012, Omega developed the unique Sedna 18K gold, an 18K rose gold alloy distinguished by its fiery hue. The alloy takes its name from Sedna, a trans-Neptunian object considered to have one of the reddest surfaces in the solar system. Sedna 18K gold not only possesses the qualities of other 18K gold alloys but is also highly resistant to fading and tarnishing over time; its unique composition—including copper and palladium—ensures the color remains stable and enduring.