The dramatic and enduring design of theOmega Constellation is characterised by its famous half-moons, “claws” on the case and mono-rang bracelet.This 39 mm stainless steel model features a bezel engraved with Roman numerals, a sun-brushed black dial and a date window at the 6 o'clock position. The hands,Omega logo, Constellation star and indexes are all in 18K white gold.At the heart of this timepiece is theOmega Co-Axial Master Chronometer Calibre 8800, visible through the domed scratch-resistant sapphire crystal.