This professional dive watch from the Citizen Promaster Marine Collection meets ISO regulations. The heavily textured bezel, with bold second markings, functions as an elapsed time controller and is a one-way bezel to provide fail-safe accuracy at a glance. The large phosphorescent hands, bold markings against a blue dial and mineral glass allow for easy readability in dark conditions. The stainless steel casing protects against the corrosiveness of seawater, while the matching stainless steel bracelet is also of durable stainless steel. This benchmark watch uses Eco-Drive technology to harness light and has a 6-month power reserve and a low charge indicator. Water resistance is suitable for water sports or wearing in the surf, screw-lock crown and case back ensure your watch performs under pressure.