Sorry to revive a 13mo post... But I just don't understand with 3D scanning, CAD & CNC machines why isn't there an accurate SeaDweller & Submariner case-set (or ANY case, from any manufacturer) that's available and affordable?
Even without a 3D scanner, someone can take accurate measurements & make a (CAD) file for CNC or even for just a 3D printer... The plastic "prototype" from the printer can then be sent to a case maker.
The few German case makers/companies I spoke to had a min order, but the cost was only about $100 US.
And you can even forget the bezel to simplify things, since companies like Clark's have accurate, affordable replacements.
If anyone has a Gen Sub or SeaDweller and interested in having some 100% accurate reps made or would like to get involved, please let me know! Or if you're willing to make a mold?, maybe using something like the rubbery stuff the dentist uses? Even just plaster? Or accurately measure every area & make some traces, I think there would be a HUGE market for it (99-100% accurate case).