Nomos Glashutte Watch Tetra 27 Champagne Steel Back 473. A smaller watch made in the traditions of Glashutte, the Champagne region of the watchmaking world. NOMOS Glashutte is marking a quarter of a century of its beloved and, to date, only model to come in the form of a perfect square with a champagne colored dial. Working within is the highly precise NOMOS caliber Alpha, equipped with the many traits that are unique to Glashutte and a perlage that never fades thats a promise.