But it has nothing to do with “investment”.
Watches are not investments.
It has to do with saving money.
And often one can get the same exact watch on the secondary market brand new/unworn at several thousand off.
C24 and such will even give a 24 day money back guarantee if bought from a dealer.
So yeah, if you can afford to pay the extra premiums to buy from an AD, then more power to you.
I used to only buy brand new cars when I was younger.
I now only buy preowned. I have calculated that I have saved about USD 300 K over the last several years doing this.
And watches don’t really “spoil” … so yeah. My humble point of view.
Best thing for all is to check both the secondary market and the AD and compare. Then make an informed decision.