Re: non-branded Minifiddy Project
Yep, just like the caseback for the 212/253. I wouldn't think that Jimmy's casebacks would fit, unless he offers one for the 212/253. I believe the threaded part is a bit smaller diameter than a "normal" Luminor caseback. I'd have to double-check, though. It's been a while since I've had the caseback off my mini-Fiddy.