Ball Engineer Hydrocarbon Titanium Chronograph Men's Watch Dc3026a-sc-be

21 micro gas tubes on hour, minute, second hands and dial for night reading capability, Chronograph with accumulated measurement up to 12 hours, Helium System Patented, Shock resistant to 7,500Gs, Anti-magnetic to 4,800A/m, Top ceramic luminous unidirectional rotating bezel, 3.7mm anti-reflective sapphire crystal, Patented crown protection system, Stainless steel and titanium bracelet with patented folding buckle & extension system,