The Zenith Defy El Primero21 Ultraviolet (Ref. 97.9001.9004/80.R922), introduced in 2020, is a Titanium-cased luxury mechanical wristwatch. The case measures 44 mm. The dial is Purple. Powered by a Automatic movement. It wears on a Textile strap/bracelet. On the secondary market, the Defy El Primero21 Ultraviolet averages $11,000 across 1 active listing. When buying pre-owned, check condition grade, box and papers (typically a 10–20% premium), service history, and originality of dial and hands. Use the listings and price history on this page to benchmark fair market value.