The Altor lock isn't meant to be used with a chain. It would be tough to find a chain that would fit it. I think the anchor chain might be too big actually.
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And no one would want to haul the chain around, if they were even able to, due to the weight. The lock is a U-lock, meant to lock a bike frame to something like a rack in front of a business or apartment over night.
I haven't looked really, but the weight of this lock, not to mention the bulk, is more than just about anyone would want to carry around.
I suppose it might have a use in some cases, and it's impressive that it's so time consuming to cut, but it seems more like something for some fun discussion, but mostly way too impractical to spend much money on.
TT