Never seen one of theses either, i have had 50 to 52 hour out of asian 6498/7 in the past, but that is no 6498, 80 hours is a nice power reserve where is this from??
I agree i spent an hour in a jewlers with a loupe stuck to my eye studying a patec movement via a display back, the quality you see in there is its own verification, oh and it wont look like a 2824!
If any sort of recomendation for these tourbillions is ever needed this is it here
The British Horological Instiute sell these with there own crest have a look here.
If it is good enough for them to put their crest on i am sure it is good enough.
I have one now with seconds @ 6 sat in my parts draw, and i think i have to change my supplier as i pay alot more than $50 for mine, mind you that does include tax, garentee from a local (same country) supplier ect.
Ok V3.1
New crystal fitted, Sternkreuz 342,it still had to be glued in though and the rehaute sprayed this time, looks better again.
Shame is i will have an ARed saphirre for this soon and need to refit that.
A good comparison there, *I like the way you did it,
I would point out that the crown on the SFSO is very wrong for this watch, but only picked up if you know it, you say the brietlin has Good AR???
Hm i may get one of these as my wife nicked my other one