The Renata 339/SR614SW is a premium Swiss-made silver oxide battery designed for small electronic devices. This 1.55V button cell battery combines reliable performance with Swiss precision engineering in a single-battery package. Key features: • 1.55V silver oxide battery • Swiss manufactured • Button cell design • Model 339/SR614SW • Single battery package • Long shelf life This battery is commonly used in watches, calculators, and other small electronic devices requiring a reliable power source. The SR614SW designation indicates the standardized battery size and type. For optimal performance and longevity, store in a cool, dry place and handle with care. Proper disposal of used batteries is recommended according to local regulations.