The Omega Constellation ref: 131.20.29.20.55.002 features a 29mm case crafted from yellow gold and stainless steel. This automatic timepiece is powered by the Omega caliber 8700 movement, which includes a co-axial escapement. The watch displays a white dial and incorporates a date function. It was produced in 2018 and is certified as a chronometer, ensuring precision in timekeeping.