Find my being very strange

Hello. For the last year or so, every time I use find my to find my watch, it shows me the location of where my phone was. This is especially strange because even when I went on vacation, it was still at the location. I am 100% sure it is using my iPhones location, but I am not able to find the actual location of my watch. Has anybody else gotten this weird find my property to happen, and if so, does anybody know how to find the actual location of your device?