Your Eco-Drive watch needs light to run. The most effective way to charge the watch is to place it under direct sunlight. A fluorescent lamp or indoor lighting does not provide enough energy to fully charge the rechargeable cell.
This is usually a warning that the watch experienced a strong magnetic field or a hard impact. Fully charge the watch, pull the crown out fully, and check if the hands align perfectly to midnight. If they do not, look up the "Reference Position Alignment" section in your specific caliber manual. citizen eco drive gn4ws12g manual link
Due to the age of the GN-4W-S-12G (produced primarily in the 2000s), some owners may experience functionality issues. Your Eco-Drive watch needs light to run
Clean the metal casing and bracelet with a soft cloth to prevent rust from moisture or sweat. This is usually a warning that the watch
"It doesn't need a heart of silver, Elias. It just needs the sun."
: Your watch converts any light source into energy. For best results, place it in direct sunlight for 5–6 hours once a month.
If your watch is malfunctioning, consider these common fixes: