Can I purchase a custom Apple Watch Series 10 band combination in-store?

Hi i want to buy the Apple Watch series 10 but unfortunately the combination with the jet black watch and the sage color band isn't in stock in this combination. But I can see that just a single band can be bought. Is it possible to just go to the store and ask for this combination or is there a problem with exchanging band is Apple Watch boxes? Hopefully someone can help me with this problem! Thanks in advance!

[Re-Titled by Moderator]

Original Title: Buying a new Apple Watch series 10 but the stock is confusing me? (Netherlands)