The Omega Constellation reference 131.20.29.20.08.001 features a combination of yellow gold and stainless steel in its case. This automatic winding watch is powered by the Omega caliber 8700 and was produced in 2018. It has a 29mm case size and showcases a champagne dial. The watch includes a date function and is equipped with a chronometer and co-axial escapement for enhanced precision.