Omega Constellation ref 131.20.39.20.02.002 (2025) pairs stainless steel with 18K yellow gold in a 39mm case topped by a Roman numeral bezel. Its opaline white silvery dial is accented with a 6 o’clock date display, while the hands, hour markers, Constellation star, and OMEGA logo shine in solid 18K yellow gold. A domed sapphire crystal caseback reveals the Co-Axial Master Chronometer Calibre 8800, delivering precision, reliability, and luxury in one of Omega’s most iconic designs.