The Nomos Glashutte NOMOS Tetra 27Glashütte Tetra 27 Karat Karat Gold Sonderedition (Ref. 472) is a Steel-cased luxury mechanical wristwatch. The dial is Gold. Powered by a Manual winding movement. It wears on a Leather strap/bracelet. On the secondary market, the NOMOS Tetra 27Glashütte Tetra 27 Karat Karat Gold Sonderedition averages $8,991,069 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.