Dear Junk-san, Good morning from Japan. Yes, it is solor powered. Please make sure to charge the battery well before using it for first time. For more information, please go through the manual when you receive the watch. Thank you. Atsukiya

Does it support Bluetooth connection?

Hello , This model GWG2000 is not Bluetooth connected . Check out model GGB100-B IT IS Bluetooth connected. Ivan My watch cdm

Is this a genuine Casio?

We at NYCMode only sell 100% authentic Casio and G-Shock products.

how do I register my watch? warranty card does not have the dealer stamp or pertanant information, last answer said nothing

Dear Mr. Owen Good morning from Japan. This is Atsukiya and we saw your previous messages which questioning for the registration of your watch. After we checked, we are not the one who sold it to you. But thought about we maybe able to help. Please refer to the English manual for this watch at following Casio official website. We believe all the necessary information is there. https://www.casio.com/content/dam/casio/global/support/manuals/watches/pdf/56/5678/qw5678_EN.pdf At same time, we also believe that the seller should provide all the information customer needed especially purchasing such expesive watch. We, Atsukiya, try to provide English (and also other laungages) manuals for CASIO watches to the customer who purchase from us. Some of them do not have English manual included since they are targetted to sell in Japan domestics. Maybe your case could be someting like this but the seller should do all the follow ups. In case you have any further question, please let us know. Hope it works out for you. Have a nice day. Atsukiya