The dramatic and enduring design of the OMEGA Constellation is characterised by its famous half-moons, “claws” on the case and mono-rang bracelet. This 25 mm 18K Sedna™ gold and stainless steel model features a bezel with engraved Roman numerals and a blue aventurine glass dial with diamond hour markers. The hands, OMEGA logo, Constellation star and diamond holders are also in 18K Sedna™ gold. At the heart of this timepiece is the OMEGA Calibre 4061, while the caseback is stamped with the Constellation Observatory medallion. Calibre Omega 4061: Quartz movement with \"Long Life\" feature to maximize the autonomy of the battery. Exclusive red OMEGA logo with rhodium plated parts and circular graining. Battery life of 48 months. FEATURESDiamonds: The hardest, most luminous precious stone whose value is calculated according to the 4C criteria: Cut - Carat - Clarity - Color. Sedna Gold™: Sedna Gold™ is an 18K rose gold alloy, fusing pure gold with copper and palladium, in order to guarantee that your gold watch has long lasting lustre. Between lugs15. 9mm Bracelet Steel - Sedna™ Gold Case Steel - Sedna™ Gold Case diameter25mm Dial colour Blue Crystal Domed, scratch‑resistant sapphire crystal with anti‑reflective treatment inside Water resistance30 Metres