If you encounter any issues with your Citizen Eco Drive GN-4WS12G, refer to the troubleshooting guide below:
Common calibers for GN-4W series: Often (simple date), E690 (chronograph), or similar. Do not proceed until you locate this 4-digit code. citizen eco drive gn4ws12g manual link
You can access the correct setting instructions by following these steps: Identify the Movement Number If you encounter any issues with your Citizen