The GN4-W S12G is a solar-powered Eco-Drive model that uses light to charge an internal rechargeable cell, removing the need for regular battery swaps. It typically includes standard analog timekeeping, date display, water resistance, and a durable stainless-steel case and bracelet.
(the "engine" of the watch), which is a 4-digit code (e.g., E870, B612) found on the case back. Locate the Caliber Number citizen eco drive gn4ws12g manual link
To ensure optimal performance and longevity of your Citizen Eco Drive GN-4WS12G, follow these maintenance and care tips: The GN4-W S12G is a solar-powered Eco-Drive model
: The first four characters before the hyphen (e.g., E111 , H800 , U680 ) are what you need. which is a 4-digit code (e.g.
This movement features a perpetual calendar, meaning it automatically adjusts for short months and leap years.