Citizen introduces a fun and functional Eco-Drive ISO-certified dive watch. It is fuelled by light and never needs a battery, so you’ll never need to open your caseback or compromise your dive again. Well-sized with 42mm case, 1-way rotating elapsed-time bezel, screw-back case & screw-down crown and anti-reflective crystal glass. Its stainless steel bracelet features an expansion clasp to easily fit over a wet suit. 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 40mm. Stainless steel case. Silver coloured stainless steel bracelet. 20mm lug width. Solar power. Eco-Drive movement. Swim proof (31m-199m). Rotating bezel. Chronograph watch. Date display. General information:Packaging: Yes. Model number: BN0100-51E. Manufacturer’s 5 year guarantee. EAN: 5060287462200.