It's a radiomir 45mm case if i'm not mistaken. Yeah the movement was from JLC on gen piece with avery thin yet powerful engine featuring 8 days power reserve without any bulkiness.
It's an extremely classy piece but i doubt it will ever get made. The movement will just have a decoration the same way KW did the PAM346z It's not impossible but before makers even consider this, there are other less complex models similar to this such as 232.