This watch is a rare vintage find when Gruen was teaming up to save various endangered species. This particular watch is for the snow leopard. Honestly, I have not had the time to even put a battery in this watch to test it. It quite possibly could run perfectly fine if a battery was installed. Please note I have not had the opportunity to test this, so it should be considered as such untested. I sell for my son’s medical and childcare needs. I accept returns and REASONABLE offers. Unless otherwise stated it is the responsibility of the buyer to maintain any parts or pieces of any mechanical items sold including adding or replacing batteries periodically for items that run on batteries. Please help me help my family. I have many other watches and items not listed yet so ask me to check my inventory. It is very hard to balance being a father and working to list but I promise I have many other items I just don’t have the time to list yet. I combine shipping on request. If you are a returning customer please message me as the new form of managed payments makes it hard for me to tell if you have come back.