The Citizen Promaster Dive 200m BN0158-18X proof that a dive watch can be fun and functional with Citizen ISO compliant Promaster Marine. With Eco-Drive technology, it is powered by light and never needs a battery. Featuring a one way rotating elapsed time bezel and screw down crown. It is stylishly understated with its dazzling emerald green dial and bezel. It will let you reach your limits and provide your life with the adventure you are searching for.