Depending on the AD, seems like it's a combination of history and outlook:

I was able to get the 124270 from an AD with very limited purchase history by stopping in every so often and just chatting about the watches. I have heard that they are trying to prioritize younger customers. They want the watches to go to people who are enthusiastic about them and will wear them.

Personally I’ve never cared much for accuracy as I always set my watches a minute or so ahead in order to never be late to anything 🤣