BULL watches offer a non toxic titanium case and bracelet. Titanium is a strong, lustrous metal that provides a corrosion resistant quality. Due to the high tensile strength-to-density ratio, titanium's high corrosion resistance, fatigue resistance, and high crack resistance make it useful for spacecraft and missiles. Due to its high corrosion resistance to sea water, titanium is used to make propeller shafts and rigging. BULL watches use titanium for the strongest encasing with a Swiss quartz movement, representing a strong working time machine. Work hard, play hard, and be strong like a BULL.