I'm with Roff that it's interesting that Breitling wouldn't acknowledge the fact that they are using Sellita (if indeed they are). Mind you, you won't find any references to ETA or Valjoux in the Chronolog or on the Breitling website either!
On that point it almost seems to me that a lot of prestige brands seem almost embarrassed to say they use ETA or the like. The only ones who tend to say up front that it's an ETA movement are the smaller brands for whom using an ETA is actually a brag instead of using some cheap Chinese movement. All the "big boys" who use ETA/Valjoux all seem to sweep it under the carpet by calling it a spurious calibre name/number of their own.
Sellita were an ETA subsidiary I believe, and so I would expect quality to be comparable, but as we all know, the watch world is a fickle place and lot can ride on having the right name. If people see Sellita as a "generic brand" ETA............. hmmmmm. Interesting times.
. This is just a very interesting but probably controversial subject. Expect to get some "passionate" replies... You probably won't get facts but opinions. What I can guarantee is the fact, that Breitling - today - are able to produce any ETA movement of their range completely from scratch, so - my conclusion - why should they use Sellita that are not on the same quality level as the best variants of ETAs... The truth is mostly the most logical thought.