I agree that retail prices from watch makers keep going up and up and the market seems to accept it.
This is not however being reflected in the used watch market anywhere near to the same degree.
Just look at the for sale posts here or other forums or even on eBay for nearly new watches, still under manufacturers warranty and very well looked after.
Lots of BUMP, BUMP... Reduction, reduction... And eventually it is gone for what would look like silly money comparing to retail for a new piece.
So be prepared to pay champagne money when you buy new and lemonade money when you want to sell
The price we pay for this passion/obsession or whatever one wants to call it.

It's a little saddening to see that Breitling has not been able to provide a classic standardized image in their range. Maybe that's why their potential value is bad, except for a few rare models as mentioned. I understand that the only model Breitling managed to maintain for a long time is Navitimer. But however IMO there is no common "Breitling identity" among all the models. I mean there seems nothing in common between Navitimers, Chronomats, SO, SA, Bentley ranges, etc, that tells you that these are Breitlings. All these models have their own distinct features to identify their range but nothing in common as an overall brand. That's why there was a thread discussing on which Breitling watch most shouts "Breitling". I think I will be laughed at if I were to start a similar thread discussing which most shouts "Rolex", because all of them does! Look at brands that have better values(PP, PAM, Rolex), even though they have different ranges and models, all their watches always have a "distinct classic image in common" that identifies their brand. I think that is very important to a luxury brand that u need to have that "identity" in all your products, whether new or old...I think that greatly affects the future value of the brand's products. IMO Breitling is simply trying to increase market share by attracting different types of consumers with different ranges and designs, and they do not bother about the resale values of their watches since it doesn't concern them? But actually it should concern them because many take potential resale value into consideration when buying luxury watches.

Not sure I entirely agree there. The Sub range and the Day/date may be individually identifiable, in the same way the Navitimer and Chronomat models are individually identifiable, but you'd be hard pushed to tell by looking the a Sub and a Day/date were made by the same company.

Other than some models that are individually desirable and valued by well-heeled collectors, it's public perception that is the driver of used values. Breitling don't fair well against Rolex or (IMHO) Omega, it's much better than TagHeuer which, although it's a lower starting point, seems to suff a bigger % drop over a given period.