I do not have the battery for this so I cannot check it. For offer is the watch pictured. NONE have been cleaned or serviced. Please assume it will need it. If the watch required a regular battery, I put a brand new fresh one in. If it is one of the rechargeable ones like in the solar powered models, I checked to see it worked by putting it in the sun for a few hours. I did nothing beyond that. It is possible it will need a new battery in those. I simply do not know. All the watchesI will be listing the next few days came from a closed store. I have no history on any of them and none were tested beyond what was mentioned above. I offer no guarantees on condition or functionality. Pics are accurate and unaltered. What you see in the pics, will be exactly what you receive. Less any size reference devices of course.