Yes I tried it with my 5517 too. Same problem, both watches were from the same dealer. I'd hate to get a Bergeon socket and it not fit. Just wondering if anyone had the same problem with rep case backs and tool sizes.
I bought a 29.5 mm case back opener socket, not a Bergeon but something similar. However it appears to be too small for my 5513, is this usual? Is the milled edge of the rep case back slightly larger in diameter than the original? I've attached a couple of images.