OMEGA 131.25.39.20.52.002 CONSTELLATION 39 mm, steel ‑ yellow gold on steel ‑ yellow gProduct Overview The Omega "Constellation" boasts a dramatic and timeless design, featuring the famous half moon design and "claws" on the case, along with a link bracelet. This 39 mm model, made of stainless steel and 18K yellow gold, is striking with its diamond set bezel, and the opaline silver dial includes diamond indexes and a date window at 6 o'clock. The hands, Omega logo, "star" of the Constellation, and the bezel with diamond indexes are all