This is a Scubapro dive computer, the Xtender5. The battery has been replaced. It works without any problems. The watch face and crystal are clean, but there is a scratch of a few millimeters and a piece of dust about 1 millimeter in size inside the top. Also, the strap is broken. Please understand that this is a used item, that the strap is damaged, and that there may be other minor scratches before purchasing. Thank you very much! ^_^