Made in Italy, the Modello Uno is Unimatic's core dive watch — a matte black dial with pale green Super-LumiNova markers set against a solid 316 stainless steel case, brushed rather than polished for a deliberately utilitarian look. A black aluminum bezel insert and off-white second hand keep the palette restricted to what actually aids legibility underwater or in low light.

Inside sits a Japanese NH35A automatic movement, giving it a 41-hour power reserve and hacking seconds for precise time-setting, while a double-domed sapphire crystal and screwed-in caseback push water resistance to 300m. Every watch is individually numbered on the caseback, tying it to that year's production batch rather than an open-ended run.