That info should be in the manual. Sorry, I don't know what the module is or else I'd post it here. You can find it on Citizen's website. You'll need the module number which is stamped on the caseback as well as on the dial.
If it was completely dead, you may have to pull the crown out for 30 seconds and then push back in to get the second hand off the hop.
Also I'd put it on a window sill with indirect light as it will charge faster. Just check that it doesn't get too hot. Better yet is to wear it outside for a few days.