NOMOS Glashutte Tetra 27mm Mens Watch 401With the Tetra, NOMOS have opted for a slightly more unconventional design than their other offerings. Despite the unusual square case, the Tetra contains everything that is so characteristically NOMOS: the unique typography (albeit slightly more modern here than in the Tangente), Bauhaus design influences and expert finishing is all here. As for the movement, this watch is powered by the beautifully finished Alpha calibre, an ultra-thin manual wind movement with 43 hours of power reserve. Featuring a clean white dial, blued steel hands, seconds sub dial and 30m water resistance, the Tetra is the perfect choice for those seeking sophistication but want their watch to stand out from the crowd.