Hi, I've got a G-Shock GW-500A  with a cracked strap. It looks like the band is held on by flat head screws, but when I turn the screw on one side of the band, the screw on the opposite side of the band turns.
So I guess its some sort of bar and not a screw, but how do I release it or undo it so I can replace the band? I'd appreciate your suggestions. Thank you.