The Nomos Glashutte NOMOS Tetra 27401 (Ref. 401) is a Steel-cased luxury mechanical wristwatch. The dial is Silver. Powered by a Manual winding movement. It wears on a Leather strap/bracelet. On the secondary market, the NOMOS Tetra 27401 averages $4,620,951 (range: $750,892–$8,491,010) across 2 active listings. 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.