The Duracell 357 303 SR44 Watch Batteries are long-lasting silver oxide coin cell batteries with a voltage of 1.5V. With a longest expiry date, these batteries are suitable for high drain devices and have an operating temperature range of 0C to +60C. Manufactured in Switzerland, these non-rechargeable batteries have a nominal capacity of 170 mAh and come in a pack of 2 units. Ideal for watches, hearing aids, and other sound and vision devices, these Duracell batteries are reliable and efficient power sources for a variety of applications.