Revue Thommen Manufacture Horlogère?

Does Revue Thommen really manufacture their own movements?  Been eyeing a model that says the movement is a Revue Thommen GT-12.  Their website says its a 19,800/beat, 17 jewel, 42 hour power reserve hand cranker with small seconds.  My question is, are these really Revue Thommen "in house manufacture" or another one of these "stroked" ETA/Unitas based deals?

http://www.revue-thommen.ch/en/gt-movement/

DBCooper wrote:Does Revue Thommen really manufacture their own movements?  Been eyeing a model that says the movement is a Revue Thommen GT-12.  Their website says its a 19,800/beat, 17 jewel, 42 hour power reserve hand cranker with small seconds.  My question is, are these really Revue Thommen "in house manufacture" or another one of these "stroked" ETA/Unitas based deals?

http://www.revue-thommen.ch/en/gt-movement/

'The GT12 along with calibers GT11, GT12, GT14, GT44, GT54, GT55, GT56, GT58, GT60 and GT82..are remakes of vintages calibers produced by the old Revue Watch Company , purchased by Grovana a few years ago, they are once again a true in house manufacture....
Excellent watches , very nice designs! in my short list for my next dressy watch...

Thanks for chiming in eddie.  I wanted to hear if from someone who is knowledgeable.  I appreciate you taking the time to check it out.  As Mort would say, "post early and post often".

Edit to add: Check your PMs eddie :-)

I love them, but they are out of my reach at present.