How To Change Battery Vintage TISSOT PR50 J178/278 Chronograph Watch

**Subject: Battery Replacement Guide for Vintage TISSOT J178/278 Chronograph Watch** **Introduction:** This guide provides step-by-step instructions for replacing the battery in your vintage TISSOT J178/278 Chronograph watch. The recommended battery is SR936SW or the alternative Swiss battery No. 394. **Test the Watch:** - Power on the watch and check if it is functioning correctly. - Reset the chronograph if necessary. **Note:** If you encounter any difficulties or have concerns about replacing the battery, it is recommended to consult a professional watch repair service. **Conclusion:** By following these instructions, you can successfully replace the battery in your vintage TISSOT J178/278 Chronograph watch, ensuring its continued functionality and precision.