The dramatic and enduring design of theOmega Constellation is characterised by its famous half-moon facets and “claws” on the case.This 41 mm model, in stainless steel and 18K Yellow gold, features a brown polished ceramic bezel ring with Roman numerals filled withOmega Ceragold. It has rhodium-grey dial with silk-embossed finish and a date window at the 6 o'clock position. The hands,Omega logo, Constellation star and indexes are also in 18K Yellow gold.Replacing the famous mono-rang bracelet is a brown leather strap with rubber lining.At the heart of this timepiece is theOmega Co-Axial Master Chronometer Calibre 8900, visible through the scratch-resistant sapphire crystal.