The Renata 379/SR521SW watch battery features excellent build quality and reliable performance. It is an ideal choice for powering various watches, clocks, and other devices.

• The size is SR63, which is widely used in many watch applications.
• It belongs to the Silver Oxide type, which provides stable and long-lasting performance.
• Each battery comes in a packaging of 1 piece, making replacement easy.
• The voltage is 1.55V, perfect for the proper functioning of watches.

This specific battery is sufficient to ensure that your watch operates smoothly and reliably, offering adequate lifespan.