Jetsons, I really want to see someone make a nice 6542...I bet you could do it
Looks like you can get the old 1675 case from Silix: Link
As you can see, the bezel teeth are not very pronounced which is why they needed to be cut deeper.
On the 'face-on view' (below), you can see the bezel outer rim is too thick...this needed to be thinned out. As you remove much of the outer material to make the bezel thinner, you lose most of the depth of its' (already shallow) teeth...thus, they needed to be recut.