With the MuRataSR416SW battery, also known as a size 337, you can feel secure in knowing that your electronic device will remain powered and will continue to perform. This silver oxide coin cell features a high energy density and is designed to keep your slow-drain devices running. The MuRata SR416SW is, therefore, the perfect power source for an analog watch, which is continuously pulling a slight amount of power to run 24/7. This size 337 silver oxide battery is sold individually. When placing an order, one unit is equal to one coin cell. When ordering in larger quantities, the size 337 battery will be packaged in tear strips of five. The MuRata SR416SW is a hard-to-find power source that keeps your watch running for longer!