Good to know, thanks!
Also a few hours in bright sunshine will charge it for months. Any kind of light will work but sunshine does it much faster. I bought my wife a Citizen Eco Drive for Christmas. Her problem is that she has over 40 watches that she wears so it does not get worn much. So what I did today is take on of my re chargeable LED flashlights and drained to batteries worth of light into the Eco Drive to get it charged up for a few months.