Hmm I wouldn't muddle small brand with lack of quality or credibility because of pricing! Nomos are a recent brand in watch terms where as Stowa have been around since 1927. If anything you'd expect Nomos watches to be cheaper than Stowa all things considered. I've owned a Nomos before too and it cost £2800, then when I got a Tudor around the same price, I wasn't seeing where that Nomos price was being applied in terms of watch case finishing or attention to detail over the Pelagos.
It is relative I guess though. But to my eyes having had both, the Stowa attention to detail inside and out of the case is just higher than Nomos in the current models in Top grade options.
Could that change going forwards now? Maybe. Tempus group might go the Swatch route and opt to release new watches that are "safe" and appeal to the masses more rather than a set loyal customer base like has been all this time.
It will be interesting to watch I think. I figure Laco are sitting back potentially rubbing their hands as a bunch of Stowa fans haul over to them in future if that does happen.
Stowa was on the brink at one point and Jorg bought the trademarks and brought the brand back, so do have to wonder how Tempus will carry on that path, or if they even will now since he's gone. Are Tempus more focused on sales figures, or is it about the watches and those who appreciate them the most.... Can it be both? From the Swiss side of things it does seem to be one or the other in recent years.
need to change the date 
