The Sony/Murata SR516SW watch battery is designed to power your small, portable devices. This silver oxide coin cell measures just 5.8 mm in diameter and is ideally meant for use in watches, calculators, and other miniature electronics. The MuRata SR516SW offers a reliable discharge rate that will keep a device running smoothly and efficiently. This silver oxide watch battery is packaged and sold in individually tear strips. When ordering in quantities of five or more, the coin cell battery will be packaged in tear strips of five cells. The MuRata SR516SW is the perfect power source for your watch and for other low-drain, portable electronics.