Sinn only uses chronometer grade movements for their watches. And unlike other marques that use stock movements they apply the saved labor and development to their case and strap design. Though frankly I'm not liking their newer watches.
If you're that much of a movement purist I hope you have some high end Seikos and Orient Stars in your collection...;-)
I like how Sinns look, but the ETA movements bother me. As for the money saved by not using a "finer movement" or developing an in House movement and the fundss going into, case, dial and bracelet design, couldn't that be said of most companies buying & using ETA movements?
Not being able to pull the trigger on nice watches that use ETAs as a base may be a flaw with me ; ) I came close to buying a Cartier Santos Galbee XL and on another occasion an IWC pilot watch", but I couldn't get over the ETA movements.
I think Seiko makes some greatc watches. An acquaintance of mine has a really nice one. Although I tend to favor Swiss watches over Japanese or German brands (actually the only German watch I'd really like to own some day is a Lange One). But maybe someday I'll add a Japanese and German watch to my collection.