I've come across several watches w/ "Chronometre" "3 Pos" "5 ADJ" "5 Pos" ""ADJ to two(2) Pos" on the movement or just "Chronometer" on the dial. I've always like these watches in particular and assumed that the build quality of these watches were superior to those that were "Unadjusted". They wouldn't waste man hours adjusting a low quality watch, right? I also heard somewhere that manufacturers used only the best parts and their most talented watchmakers to build these watches. Is that right? Maybe someone here has an idea of how these watches were made and if there is a difference in build quality. For example, Longines makes a movement called Cal. 25.17. Some of these movements have the "5 ADJ" and some do not. My guess is that the best parts were put into the adjusted versions. Another funny way to look at it would be that the parts were so bad they required adjusting
I purchased a book call "Wristwatch Chronometers" by Fritz Von Osterhausen so hopefully that could shed light to this and I'll be posting any information I gather here.