The Omega Constellation reference 131.12.41.21.06.001 features a stainless steel case with a diameter of 41mm. This automatic watch is powered by the Omega caliber 8900 movement, which includes a co-axial escapement. The silver dial displays the date function and is certified as a chronometer. This model was released in 2020, showcasing Omega's commitment to precision and reliability in watchmaking.