Battery Reference

One problem with collecting Electric Watches is that you need an awful lot of batteries!  Use the industry standard Reference Number in the first column whenever possible.


  • HS: High drain silver oxide
  • LS: Low drain silver oxide
  • LM: Low drain mercury oxide — no longer available

Suitable modern batteries for Accutrons are discussed in the Accutron section. If you’re looking for information on batteries for a Landeron 4750/4760 based watch (i.e. Wittnauer Electro-Chrons), then please visit the battery page under the Landeron section.

Battery Chart

Battery Chart