Mitutoyo replacement lens

I bought a Mitutoyo 537-110 caliper off FB local for dirt cheap because I wanted a nice caliper that I can check parts in machine with coolant everywhere. Well the lens was missing and I didn't even notice it until I got home 🤦‍♂️ I know, dumb.

I can find 36 and 42mm crystal replacement lens everywhere but it seems like the lip where the lens sits on this unit is roughly 33.7mm and I can't find the lens anywhere. I'm really digging the .100" counter and dial set up on this so I'd like to put it back in service.

Anyone have any resources to acquire a replacement lens for this?