Check the listing for details. Energizer 379 Button Cell Watch Batteries 5 pack. Condition: New. Listed at 5.35 USD. 5 Pack Energizer 379 (SR521SW) Silver Oxide Battery 1.55 Volt Energizer Battery 379Used in Watches, Electronics and moreHigh Quality BatteryMade in USA or JAPAN Energizer 379 Button Cell Silver Oxide Watch battery. Energizer is a worldwide leader in small electronics batteries. Energizer offers a full line of Watch Electronic Specialty Batteries for applications used in precision engineering tools to power a wide variety of small electronic devices. Everigzer batteries are used in home health devices such as glucose monitors, blood pressure cuffs and digital ear thermometers. Also, button cells can be used in keyless remote entry systems for cars and homes. Hand held electronic devices also use batteries in calculators, watches, photo camera, audio books, computers, games, toys and more. A Cross-reference information guide is inclued in each order. Made in USA or JAPAN. Works in: watches, computer, keyless entry, consumer electronics and hearing aid industries, and other electronic devices. Equivalent to: 379, 179, SR63, 1191SO, SR521SW, V379, Bulova 618, Citizen 280-59, Duracell D379, Energizer 379, Goldpeak 379, IEC SR63, Maxell SR521SW, Rayovac 379, Renata 379, Seiko SB-AC, Sony SR521SW, Timex JA, Toshiba SR521SW, Varta V379