This is a solar-powered, "Made in Japan" dive computer, the "CALM Plus+." I would appreciate it if you could look up the detailed specifications. Please also note that I haven't performed any detailed operations. I purchased this in this condition, tried it on, and have stored it. There is no feeling of use, and I believe it's in good overall condition. Please also understand that I am not an expert. This is a used item, so please check the photos and understand before purchasing. Thank you. AQUALUNG CALM PLUS+ Solar Charging Dive Computer Accessories: None (The watch stand is not included for photography purposes) Color: Red Please note that there may be slight color variations due to the photography environment. *This item has been handled by another person and is inspected by an amateur, so please refrain from purchasing if you are looking for perfection. Please purchase if you understand that this is a used item. Thank you.