Sorry if I am late to the game on this, but this is the first time I am seeing this: "Purchase Directly From Chrono24"
They've been dealing since 2019 i think The prices is kinda high also.. The question is, do they service watches?
As they're in the European Union they're legally compelled to a 2-year warranty on what they sell. So they must be able, one way or another to have watches serviced.