Reactor Mens Critical Mass - Swiss Quartz - Two-Tone - Chronograph - Blue DialProving that toughness doesn't sacrifice style is the Reactor Critical Mass collection with classic styling and precise timekeeping. Featuring a unidirectional rotating bezel, triple o ring screw down crown for superior water resistance, free floating lug system for a comfortable fit on any wrist, and Superluminova hands and markers to ease readability in low light conditions. Brushed Finished Case and Bracelet with Polished Genuine Gold Plated