The Omega Constellation reference 131.20.39.20.13.001 features a 39mm case crafted from Sedna Gold and stainless steel. This automatic watch is powered by the Omega caliber 8800 movement, which includes a Co-axial escapement and is certified as a chronometer. The timepiece, released in 2019, showcases a brown dial and includes a date function. The combination of materials and technical specifications makes this model a notable addition to the Constellation line.