CR2016 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 CR2016 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: DL2016, ECR2016, FA, SBT11, BR2016, 208-202, 208-204, 208-206, DL2016B, BR2016-1W, CR2016-1W, KCR2016, L10, LM2016, LF1/4V Replaces: Citizen 280-206 Duracell DL2016 Energizer ECR2016 Seiko SB-T11 Timex FA