This is the larger version of the only square NOMOS watch, Tetra— a very modern and yet archetypal watch whose angular exterior is complimented perfectly with its classical inner values: the NOMOS Alpha caliber. Tetra does not require jewels, mother-of-pearl or other gilding—this watch charms with its character alone.
stainless steel, bipartite; sapphire crystal glass; size 29.5 mm by 29.5 mm; steel back: height 6.15 mm; sapphire crystal glass back: 6.3 mm; fixed with four screws
galvanized, white silver-plated
steel, tempered blue
Horween Genuine Shell Cordovan black, lug width 18 mm
to 3 atm
408, 406 (with sapphire crystal glass back)