| Category | Specification | | :--- | :--- | | | Citizen | | Model / Ref. No. | GN-4W-S-12G | | Movement Type | Eco-Drive (Solar Quartz), Radio-Controlled | | Caliber / Movement | E670, H45, or H804 (depending on variant) | | Case Material | Stainless Steel (some models Titanium) | | Crystal | Sapphire (scratch-resistant) | | Water Resistance | 10 BAR / 100 meters (10ATM) or 20 BAR / 200 meters (20ATM) | | Dial | Black with luminous hands and indices | | Band / Bracelet | Black Leather Strap or Stainless Steel Bracelet | | Clasp | Citizen Signed Buckle / Folding Clasp | | Country of Origin | Made in Japan |
The letters and numbers nearby (often in a format like H500 , E111 , or B612 ) identify the specific movement caliber inside. 2. How to Identify Your Exact Movement Caliber
To keep your watch running optimally, expose it to light daily. Below are estimated charging requirements for a fully depleted watch:
To maintain a healthy, continuous charge, expose your watch to light regularly. citizen eco drive gn-4w-s-12g manual
Never leave your watch on a hot car dashboard to charge, as excessive heat will damage the internal components. Charge Time Reference Table
If the watch is behaving erratically (hands not moving correctly, buttons not working), you may need to perform an "All Reset."
A key part of using your Eco-Drive watch is ensuring it's regularly exposed to light. Sunlight is the most effective charging source. In an emergency, you can also use indoor fluorescent or incandescent light, but charging will be much slower. | Category | Specification | | :--- |
When you buy a Citizen Eco-Drive watch, you are buying decades of Japanese quartz innovation. The model reference GN-4W-S-12G is a prime example of Citizen’s commitment to reliability. If you have recently acquired this timepiece (perhaps from the popular "Garrison" or classic sport field watch line), or you have lost the physical manual, you have come to the right place.
The first four characters before the hyphen represent your watch's (e.g., E111, H500, H145, U680).
If you tell me the from your case back (e.g., H500, E870), I can provide the precise steps for your specific model. Instruction manual | CITIZEN WATCH Global Network Never leave your watch on a hot car
Email Citizen Japan or your local Citizen subsidiary (e.g., Citizen Watch America) with a photo of the case back. Provide the string GN-4W-S-12G. Their archivists can cross-reference production codes.
While different models have different buttons, most standard Citizen Eco-Drive watches share the same basic steps for setting the time and date. How to Set the Time INSTRUCTION MANUAL - CITIZEN WATCH Global