Make a splash with this ISO-certified watch from the Citizen Eco-Drive Promaster Diver Collection. It is fueled by light and never needs a battery, so you'll never need to open your caseback or compromise your dive again. One-way rotating elapsed-time bezel, screw-back case and screw-down crown and non-reflective crystal with poly strap. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E168. Specification Details - Brand: Citizen - Model Number: BN0085-01E - Collection: Promaster Diver - Movement: Eco-Drive Quartz (solar-powered, no battery replacement) - Case Material: Stainless Steel - Case Diameter: 48 mm - Case Thickness: 14 mm - Case Shape: Round - Dial Color: Black with luminous hands and markers, blue accents - Crystal: Scratch-resistant mineral glass - Bezel: Unidirectional rotating bezel with minute markers - Band Material: Black Rubber Strap - Band Width: 23 mm - Clasp: Tang buckle closure - Functions: Analog time, Date display at 3 o’clock - Water Resistance: 300M (ISO-certified diver’s watch) - Warranty: 5-Year Limited Warranty Item # BN0085-01E For more information, assistance, sizing and customization, please contact us at (757) 548-1258 or visit our site to know more. https://tidewaterdiamond.com #BestRingEver #TidewaterDiamond