Sony 379 (SR521W) 1.55v Silver Oxide (0%Hg) Mercury 1 Watch Battery - Made in Japan

For digital / analogue watches and other electronic products, it is essential to have a high quality energy source with the highest reliability to power your products. SONY batteries are known to be the most reliable watch batteries available in the market. Supplied in the highest quality and globally to various watch and other branded electronic manufacturers. You can be confident you are buying a top quality and long lasting battery for your watch. Each battery comes in a factory sealed blister pack with a long expiry date. The item is in stock and ships same day.