The Omega Constellation reference 131.20.39.20.02.002 features a 39mm case crafted from a combination of yellow gold and stainless steel. This automatic timepiece is powered by the Omega caliber 8800 movement, which includes a date function and is certified as a chronometer. The silver dial complements the overall design, while the co-axial escapement enhances its precision. This model was released in 2019, showcasing a blend of traditional watchmaking and modern technology.