The Ball Engineer Hydrocarbon NEDU was introduced in 2013. It was named after the Navy Experimental Diving Unit branch of the American Navy. The case measures 42mm across and is made of titanium with a ceramic bezel insert. It houses the self-winding caliber 7750 which is chronometer certified. The crown is fitted with a signature protector and an integrated helium escape valve.Reference DC3026A-S1CJ-GY has a grey dial with black subdials, and a titanium bracelet.
