Renata 377 (SR626SW) is a premium Swiss-made silver oxide watch battery. Each pack contains 10 batteries rated at 1.55V, manufactured with 0% mercury content, making them environmentally friendly while delivering reliable performance for watches and small electronic devices. Key features: • Swiss manufactured • 1.55V silver oxide battery • 0% mercury content • 10 batteries per pack • Model 377/SR626SW • Long shelf life These batteries are specifically designed for use in watches and precise electronic instruments requiring stable power output. The SR626SW designation indicates the standardized size and specifications. Store in a cool, dry place away from direct sunlight for optimal battery life. Proper disposal of used batteries is recommended according to local regulations.