This listing is for 2 brand new sealed Battery CR1620CR1620 lithium button cells are commonly used in car security (car alarm/keyfob batteries), organizer (backup battery for PDA such as Psion etc), glucometer, camera, electric thermometer, calculator, computer equipment (memory backup battery), toys, accutron, communication equipment, electronic watches/clocks, card radios, data pack for video camera.These CR1620 batteries have a shelf life of 10 + years, so why not buy two or more. Take advantage of our reduced price and make sure you are not left without a watch next time your battery runs out. Also known as: DL1620, ECR1620, BR1620, 280-208, DL1620B, BR1620-1W, CR1620-1W, KCR1620, LM1620, 5009LC, L08, EAReplaces Citizen 280-280Duracell DL1620Energizer 1620Seiko SB-T17Timex EAMany others... FREE USPS first-class envelope postage shipping