Rolex Daytona 116528 Wrist Watch "455b1" Questions

hi?? i have rolex watch from my mother ??78488 455b1 18k 750 watch fake or not? thanks It will be hard to tell by the serial # or other things..ie.. weight, open the back, check for jeweled movements.

...aswell.. on the back it says "winner rolex ad daytona 1992 24" on the back it also has 455b1 .... on the band at the clasp it says "78488. Rolex genuine swiss made rolexs 18k ...