The Omega Constellation reference 131.20.39.20.08.001 features a 39mm case crafted from yellow 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 dial is a champagne color and includes a date function. This model was released in 2019, showcasing a blend of materials and advanced watchmaking technology.