This is likely a wristwatch from over 30 years ago. I replaced the battery, and it's working, so I'm putting it up for sale. It only has the time and date display functions. It has a design that looks like it's for various sports, but it's just the design; it doesn't have a timer or stopwatch function. When I replaced the battery, I slightly scratched the plastic part of the battery cover. Please check the photos. There were pieces of styrofoam-like material inside from the beginning. I think it's for filling the gaps. There are no noticeable signs of deterioration at the moment, but it's quite old, so there may be some age-related degradation. Please understand this. #Bighorn