. . . except Italy, where anything watch-related disappears.
Since they don't send mail on the water any longer, a small padded packet with two watch links via air shouldn't be a major issue.
In the US, anything mailed abroad with a value of $50 or so takes a single very simple Customs form. Tracking would be an unnecessary luxury . . .
Well, I send all my stuff through Fedex , and the only cnty in the world that requires 'extra' paperwork is the USA , the USA wants a 'fedex watch worksheet' detailing the watch inside the box
Italy no problem with fedex (knock on wood) but I have completely gone away from using anything/anyone else . too much hassle , not enough tracking to satisfy buyers (and myself) and too slow . Yes it costs a bit more but I sleep much better