Hey everyone, the battery in my mom's Burberry watch is dead and I figured it would be easy to change but I honestly have no idea how to take the battery out. I assume I'd need to remove the piece on top of the battery but the problem is I don't have a flat head that can even unscrew that, does anyone have any idea on what type of screw driver I would need? From what I know, the movement is a Ronda 5021.D. I'm sorry if this isn't in the correct section as I wasn't too sure of where I should post this.