A watch battery chart is a type of cross-reference chart useful in determining appropriate watch battery replacements. Both Batteries.com and BatteriesInAFlash.com offer easy-to-read watch battery cross-reference charts.
To use a cross-reference chart to determine which watch battery fits a particular watch, users should compare the existing battery to the chart to find its equivalents. For example, an existing watch battery from Energizer or Rayovac labeled “301” is the equivalent of a Vinnic S1142S, Citizen 280-01, Timex D or Seiko SB-A8 battery. Both charts offer equivalent options for a variety of watch brands, including Bulova, Citizen, Seiko and Timex, among others.