How Should I Store My Mudita Radiant When I'm Not Wearing It For A Long Time?

Store it in a dry, safe place away from direct sunlight and strong magnetic fields. A watch box is ideal. 

If you plan on not wearing the watch for an extended period (several weeks or months), it's a good practice to give it a gentle swirl or a manual wind once every few weeks. This helps to keep the internal lubricants evenly distributed throughout the movement, preventing them from drying out or settling.