Citizen Eco-Drive x Analog ft. Rainell Women Formal Round 50m Water Resistant Watch EX1550-54E EX1550 EX-1550 Elegant and sustainably powered, the Citizen L Rainell features a softly contoured 20mm silver-tone stainless steel case and a five-link bracelet. The clean dial with applied indices is protected by a spherical sapphire crystal. Driven by light-powered Eco-Drive technology, it never needs a battery. Water-resistant to 50 meters. Caliber Number / Movement B023 (Eco-Drive aka solar powered) Power Reserve / Accuracy Approximately 5 months when fully charged (+/-15 seconds per month) Crystal Sapphire crystal (curved) Luminous Nil Case / band Material Stainless steel case with stainless steel band (deployment clasp with push-button release) Water Resistance 50m / 5 bar Case Size Thickness: 7.5 mm Diameter: 19.7 mm Length: 26.0 mm Lug width: Integrated Other Specifications Citizen Eco-Drive x Analog ft. Rainell Overcharge prevention function Insufficient charge warning function Regular timekeeping (analog display)