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Seña wine was established as a collaborative venture in Chile between Viña Errázuriz and Robert Mondavi . Since 2005 Seña is owned 100% by the Chadwick family, proprietors of Errázuriz, and is the personal project of Eduardo Chadwick. Eduardo's ambition is to create a Chilean icon wine, one which fully expresses the terroir (wine identity linked to local soil, aspect and climate) of the Aconcagua Valley north of Santiago. The inaugural vintage of Seña, which is Spanish for distinguishing mark or personal signature, was that of 1995. The wine is made from a blend of six of the classic red grape varietals: Cabernet Sauvignon, Merlot, Carmenère, Cabernet Franc, Petit Verdot and Malbec. The grapes for Seña are sourced from Seña Hillside vineyards within the Aconcagua Valley, in which vines are grown according to bio-dynamic principles. The wine is currently produced at Errázuriz's Don Maximiano Estate winery in the Aconcagua Valley.
Seña 2001 was amongst two Chilean wines to take first and second place in the Berlin Wine Tasting of 2004, a blind tasting of icon wines from France, Italy and Chile judged by 36 international wine experts .