Seiko analog solar Roman numerals metal women watch SWFA210 2025.5 releaseProduct Care Tips Solar watches convert light into electrical energy, storing it in a secondary battery to keep ticking. Regular charging ensures your watch stays running smoothly without interruption. Avoid storing your watch in dark places like boxes or drawers when not in use; instead, place it in a bright spot for charging. For optimal performance, charge your watch by placing it in sunlight for 5 6 hours near a window once a month to minimize the