Citizen Eco Drive Gn-4w-s-12g Manual -

To help you get the most out of your Citizen timepiece, you may want to look into specific operational details or accessories. The following options can help you finalize your setup:

Based on Citizen’s naming conventions and existing documentation for similar GN-series watches (e.g., GN-4W-S models), the following characteristics are identified: citizen eco drive gn-4w-s-12g manual