Argonautic Lumis BS

66% improved luminosity Gaseous tritium light sources (GTLS) are located on the numerals and hands of the Argonautic Lumis. They are particularly safe, and guarantee the watch wearer a minimum of fifteen years of constant luminosity – without an external energy supply. The light sources are 66% more powerful than in the preceding DAVOSA model. Moreover, they glow green in the dark; a colour that is particularly easy for the human eye to see in poor light conditions. BEYOND STEEL® This high-performance material from DAVOSA exhibits exceptional material properties. It is as heavy as gold (density of 19.3 g/cm³), almost as hard as diamond, and withstands the highest heat. BEYOND STEEL® is practically indestructible, completely resistant to chemical influences, as well as being rust and nickel-free. With a hardness four times that of titanium and twice that of steel.