Check the Citizen Watch User Guide library for a similar analog-digital manual. Key Features of the GN-4W-S-12G
To fully charge your Eco-Drive from empty, it requires approximately 11 hours of direct sunlight (100,000 lux) or 40 hours of cloudy day sunlight (10,000 lux).
The watch had sat in the back of Elias’s drawer for a decade, a relic of a grandfather who valued precision over everything. It was a Citizen Eco-Drive GN-4W-S