Maxell SR416SW 337 watch battery..1.55V.Made in Japan.Single piece or 5pcs pack both available.100% original gurantee Maxell SR416SW 337 watch battery 1.SR416SW 337 silver oxide watch battery 2.Japan origin3.100% original gurantee4.1.55V5.Single piece pack6. stock supply,fast delivery7. Full size of SR series are available Maxell SR416SW 337 watch battery