With respect, this is lame. If the chains were from just another adventure why would Vikor leave them attached to his wrist. Clearly the chains represent some significant event in Vikor's history. This is a story we deserve to know.1. TheFallen:
We all know that MOTUC is an avatar of the imagination but what is the story behind the chain connected to Vikor's wrist? Obviously, it is on there because of the original drawing but has a story been developed as to why it is actually there?
We imagine the chains are left over from a recent adventure. Perhaps a breakout from a dungeon or being captured temporarily by the Fighting Foe Men!
For the rest of his life our Phantom's father kept the chains by which he was bound to a ox-drawn well for months, held captive and unable to rescue his wife-to-be. That is the type of event that would qualify for Vikor keeping the chains.
A thought I've had is that maybe Vikor was chained by the FFM to a gateway which held captive the Goddess or even the Demon (from The Ordeal of Man-E-Faces mini-comic) and that when eventually Vikor broke free he retained the chain as a sign of honour (or shame).
At any rate, whatever the story, let's hope TG and the bio-writers reconsider the above answer and choose to give the chains real historical/emotional importance to Vikor in some future bio of a Preternian character or Fighting Foe Man.