It looks somewhat gen spec.
crystal fits on midcase
metal ring to hole on bezel assembly
I can not confirm as I do not have one in hand.
The Modder who was doing the crown guard shaping is somewhere in China. according to raffles. He is a member on here.
The same modder also used the case set to build a 1655
those crown guards looks good. Looks like he is using a cartel / bp bezel (pointy 4s) so its safe to assume the crystal is a 25-116 and the case can fit a smooth flat bezel or rotating bezel assembly
Id say that looks better than the cartel case for the 1655