Proof that a dive watch can be fun & functional with the Citizen® ISO-compliant Promaster Professional Diver. With Eco-Drive technology, it is powered by light and never needs a battery, so you'll never need to open your caseback making sure your watch maintains it factory sealed and water resistant. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E168. Specification Details - Brand: Citizen - Model Number: BN0150-28E - Collection: Promaster Diver - Movement: Eco-Drive Quartz (solar-powered, no battery replacement) - Case Material: Stainless Steel - Case Diameter: 44 mm - Case Thickness: 12 mm - Case Shape: Round - Dial Color: Black with luminous hands and markers - Crystal: Scratch-resistant mineral glass - Bezel: Unidirectional rotating bezel with minute markers - Band Material: Black Polyurethane Strap - Band Width: 20 mm - Clasp: Tang buckle closure - Functions: Analog time, Date display at 4 o’clock - Water Resistance: 200M (ISO-certified diver’s watch) - Warranty: 5-Year Limited Warranty Item # BN0150-28E 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