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The OMEGA Constellation Sedna is the inaugural model made from 18K Sedna™ gold, featuring a 38 mm polished case, a brushed bezel with Roman numerals, and a two-zone silvery 'pie-pan' dial with matching gold accents. Limited to 1,952 pieces to honor the Constellation's debut year, it is worn on a brown leather strap and powered by the Co-Axial calibre 8501, visible via a clear caseback.