I bought 2 of these excellent watches several years ago and never needed to use this one.  The first one runs like a top and has survived a rough life! The accuracy of these watches is phenomenal exceeding both of my Rolex watches!  This one has been stored with the crown in out position to preserve battery.  I pushed it in to check battery before listing and it had gone dead so I had my jeweler install a new one so it is ready for you to enjoy!