Community verified— Verified from trusted watchmaker & collector sources
What Battery Does Mondaine Railways Use?
Battery
SR920SW
Silver Oxide Low Drain 1.55V
- Battery life
- ≈ ~45 months
- Voltage
- 3V
- Caliber
- Ronda 513.S
Where to buy SR920SW
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Compatible SR920SW Batteries
Renata 371Maxell SR920SWSony MurataEnergizer 371
All listed brands are direct equivalents. Always use Silver Oxide Low Drain 1.55V chemistry.
Other Names for SR920SW
SR920SW371D371V371
See full cross-reference table How to Replace the Battery in Mondaine Railways
- Use a case back opener
- SW (Low Drain) type only — Ronda movements are sensitive to battery chemistry
- Replace case back and ensure proper sealing
Related Watch Models
Data verification
Battery information is based on manufacturer documentation where available and community-verified sources. If you notice an error or have official documentation for this model, please contact us to help improve this database.