Watch only. No case or instruction manual included. Year of manufacture unknown. Please search for product details. The back cover screw is missing, and I cannot determine if the contents are normal. It is not working, so I think it either has no battery or is broken. For those who are knowledgeable For those who can judge based on the images only Please only purchase if you understand and agree to the above! Please note that I may not be able to reply immediately. #B11