The dramatic and enduring design of the OMEGA Constellation is characterized by its famous half-moons, “claws” on the case and mono-rang bracelet. This 39 mm 18K yellow gold model features a bezel engraved with Roman numerals, an opaline white silvery dial and a date window at the 6 o'clock position. The hands, OMEGA logo, Constellation star and indexes are all in 18K yellow gold. At the heart of this timepiece is the OMEGA Co-Axial Master Chronometer Calibre 8801, visible through the domed scratch-resistant sapphire crystal.&nbsp; &nbsp;<div>Caliber&nbsp;&nbsp; &nbsp;</div><div>Movement: Automatic&nbsp;&nbsp;</div><div>Power Reserve: 72 hrs&nbsp; &nbsp;&nbsp; &nbsp;</div><div>Case&nbsp;&nbsp; &nbsp;</div><div>Case Material: 18k Gold Stainless Steel&nbsp;&nbsp; &nbsp;</div><div>Case Diameter: 39mm&nbsp;&nbsp; &nbsp;</div><div>Bezel Material: Stainless Steel&nbsp;&nbsp; &nbsp;</div><div>Dial Material: Sapphire Crystal&nbsp; &nbsp;</div><div>Dial Color: White&nbsp; &nbsp;&nbsp;&nbsp;</div><div>&nbsp;Bracelet/Strap&nbsp;&nbsp;&nbsp;</div><div>&nbsp;Bracelet Material: 18k Gold Plated&nbsp;Stainless Steel&nbsp;&nbsp; &nbsp;</div><div>Bracelet Color: Gold, Rose Gold&nbsp;</div><div>&nbsp;Clasp: Deployment Clasp</div>