The Omega Constellation ref: 131.23.41.21.10.001 features a 41mm case crafted from stainless steel, ceramic, and yellow gold. This model, introduced in 2020, is powered by the automatic winding Omega caliber 8900. It includes a green dial and offers a date function, along with a chronometer certification and co-axial escapement for enhanced precision. The combination of materials and the sophisticated movement make this timepiece a notable addition to the Constellation line.