NOMOS Glashütte Tetra Ochra

The NOMOS Tetra Ochra, reference 437, has a square steel case measuring 29.5 x 29.5 mm. Ocher yellow appears on the dial, with rhodium-plated hands and a yellow hand on the small seconds sub-dial. The hand-wound DUW 4001 calibre has up to 53 hours of power reserve, and the watch has a sapphire crystal case back. The case is 6.5 mm thick and spans 40.5 mm lug-to-lug. The square case has water resistance rated at 50 metres. A beige vegan velour strap has remborde construction.