The beauty of gold, the brilliance of precious stones, and yet none of it in this watch. Upon closer inspection one could mistaken its case with an aged yellow gold, bronze or brass case. With complete mastery of the art of thermal oxidation of metals, De Bethune explores all the possible color shades resulting from the heat released by the chemical reactions of heat-treated steel and titanium. The De Bethune DB28 Yellow Tones brings a hue of yellow never seen before on a titanium case.