This ISO-compliant Citizen Eco-Drive Promaster Diver watch is fueled by light and never needs a battery. Complete with a one-way rotating elapsed-time bezel, screw-down crown and poly strap. A simple, yet revolutionary concept: a watch that never needs a battery. Citizen Eco-Drive technology harnesses the power of light from any natural or artificial light source and converts it into energy which is stored in a permanently rechargeable lithium-ion cell. It recharges continuously in any kind of light to run forever. Watch features:Analogue display. Black dial. Case width 47mm. Stainless steel case. Stone set strap black coloured silicone strap. 22mm lug width. Solar power. Eco-Drive movement. Diving standard (+200m). Rotating bezel. Date display. General information:Packaging: Yes. Model number: BN0085-01E. Manufacturer’s 5 year guarantee. EAN: 5060045476845.