This promaster diver men's watch from citizen is both fun and functional, meeting iso compliance with a 43mm stainless steel case with an azure blue aluminum one-way rotating elapsed time bezel and matching azure blue dial, and water-resistance to 200 meters, and luminescent hands and markers. With eco-drive technology, it is powered by light and never needs a battery, so you'll never need to open your case back or compromise your dive again. The stainless steel bracelet secures with a fold-over clasp.