This 329 Renata Battery is used to replace SR731SW style batteries commonly used in popular watch brands such as Casio, Timex, Swatch and Fossil, or other devices like calculators, cameras and medical instruments.
These are low drain batteries, ideal for devices that use low power over a long periods of time like analog watches, TV remotes and alarm clocks. High drain devices use continuous power over low time with peak usages like digital watches with backlights and handheld game systems.
This battery has a nominal capacity of 37 mAh, which is a measurement of energy capacity of the battery. In general, a higher mAh indicates longer battery life.
This 301 battery replaces the following equivalent batteries