Horological Meandering

It's been a while since I've posted here.....I'm sorry if someone has posted this a similar question before but what makes a desirable movement? I own some Panerai watches and it seems they're always making the same variations of the same watch "8-Day" et... 

I think it really depends... For a watch for collecting, I'd say major important characteristics include, but are not limited to, rarity, exclusivity, aesthetic finish (anglage, etc), technical features (regulation system, power reserve, hacking etc) and ... 

I am probably reading too much into your response, but I didn't see accuracy amongst the desirable characteristics of a movement... An omission or is it a just a given? (!)

Since keeping time is the main function of the watch movement. I should have mentioned it none the less, thanks for pointing that out! B

Experience has shown that it is much harder to make a reliable, accurate movement than it is to make a well-decorated one.

...that probably makes doing both incredibly difficult. I can name Lange & Sohne from the big league of producers and, of course, some small manufacturers like Voutilainen and Dufour.