The Omega Constellation reference 131.55.29.20.55.001 features a 29mm case crafted from Sedna Gold. It is powered by the Omega caliber 8701, an automatic winding movement known for its precision. The watch showcases a white mother of pearl dial and includes a date function. Additionally, it is equipped with a chronometer and utilizes a Co-axial escapement. This model was released in 2018, reflecting Omega's commitment to innovation and quality in watchmaking.