Promaster Dive watches offer dive-ready functionality. Eco-Drive technology - runs on light never needs a battery. Gold-tone stainless steel 3-link bracelet bezel and case. Gradient green dial with lume hour markers and hands. Day of the month calendar at the 3 position. Green stainless steel unidirectional bezel. Includes a wetsuit extender that doubles as tool-less micro adjust. Sapphire crystal window for scratch resistance and hardness. Double push button safety fold over closure. Case size: 41mm. ISO Compliant and water resistant to 200 M.