The tudor 390 is a 12.5 ligne FEF (Fleurier Ebauche Factory) 380/390 base movement and is known to be an Ok base movement but with a troublesome autowind assembly (I do not know if this a/w assembly is exclusive to tudor or not). For this reason, autowind parts are very hard to find so if you buy a movement needing parts, it can be an expensive project.
Some 'rolexperts' claim the tudor 390 can use parts from a rolex 1030...I seriously doubt anything will interchange.
My guess is the cost of a Yuki etc 5513/1680 case/dial with rolex 1520/1575 would not be much more than a Yuki etc tudor case/dial with a tudor 390 needing a few parts.
Tudor projects with an Eta 24xx/28xx cost much less to put together.
I had a 390 autowind assembly in my watchjunk but have not seen it since I moved my shop in 1997.