A guide that explains watch battery types, dimensions and how to choose the correct replacement.
The Watch Material guide provides a cross‑reference chart for watch batteries, showing how to match a battery’s size, chemistry and model number to the appropriate replacement. It explains the meaning of common prefixes such as SR (Silver Oxide) and LR (Alkaline) and how the three‑digit codes correspond.
The document also includes brief instructions for opening a watch case, removing the old battery and installing a new one, along with safety tips about temperature exposure. It lists several popular battery brands and their specifications to help users find compatible parts.
The SR prefix stands for Silver Oxide chemistry.
The LR prefix indicates an Alkaline chemistry.
Use the cross‑reference chart by matching the battery’s diameter and thickness to the listed dimensions.