Duracell 379 Silver Oxide Button Battery Power up your watches and calculators with this Duracell 379 Silver Oxide Button Battery. This 1.5V battery is perfect for coin/button cell type and comes with a silver oxide chemical composition. It has a battery size of 379 and is model number D379B, with a sub-type of SR521SW. This battery is an essential item for those who need it for everyday use. It comes in a pack of one and is a reliable choice for powering your watches and calculators. Don't let a dead battery ruin your day, make sure to get this Duracell battery today! Item Condition New in original retail packaging. Sealed and never been opened. Unused. Item Location Ships from our warehouse in Tucson, Arizona, 85713, USA Fast FREE Shipping We handle all paid orders within 2 business day. Return Policy We offer a 30 day return window from when you receive the item. Items must be in the same condition and in original packaging. The Duracell 379 Silver Oxide Button battery is designed to provide reliable power to specialty devices like watches, medical devices, digital thermometers, and other electronics. Duracell 379 Silver Oxide Button batteries are guaranteed for 3-4 years in storage, so you can be confident these batteries will be ready when you need them. From storm season to medical needs to the holidays, Duracell is the #1 trusted battery brand. POWER FOR A WIDE RANGE OF DEVICES ? The Duracell 379 Silver Oxide Button battery is designed for use in a variety of compatible devices like watches, medical devices, calculators, and other electronics. LONG-LASTING POWER ? Duracell high power 379 batteries were also developed to provide reliable performance for digital thermometers, laser pointers, stopwatches, and more. GUARANTEED FOR 3-4 YEARS IN STORAGE ? Duracell 379 Silver Oxide Button batteries are guaranteed for 4 years in storage, so you can be confident these batteries will be ready when you need them. BUILT FOR RELIABLE PERFORMANCE in a wide range of high-powered devices, the 379 is equivalent to 379, SR63, SR521SW, V379, SR521W, and D379 battery types. #1 TRUSTED BATTERY BRAND ? From storm season to medical needs to the holidays, Duracell is the #1 trusted battery brand.