131.13.39.20.06.002 Omega The Omega Constellation Co-Axial Master Chronometer 131.13.39.20.06.002 is a luxury men's watch with a stainless steel case measuring 39mm in diameter and 12.4mm in thickness. The watch features a grey ceramic bezel with black Roman numerals and a stainless steel crown. The dial is grey with blue polished hour facetted indexes and blue hour hands with luminescent coating. A date window is located at the 6 o'clock position. The Omega logo is located below the 12 o'clock position. The watch is powered by a self-winding mechanical movement with a power reserve of approximately 55 hours. The case back is transparent, allowing for a view of the movement. The front and back of the watch are protected by sapphire crystal. The watch comes with a blue alligator leather strap and a steel folding buckle. The watch has a water resistance of up to 50m, making it suitable for light water activities but not recommended for swimming or diving. The Omega Constellation Co-Axial Master Chronometer 131.13.39.20.06.002 is a stylish and functional timepiece that is sure to impress with its blue and grey color combination.