The short answer is, no.
I used Secursus, but they don't cover it. So I effectively send it uninsured without knowing.
All the major couriers have T&Cs small print saying they don't cover. I also used DHL once, again without knowing it wasn't covered as I received conflicting advice on their phone lines.
I read in another thread mailboxes,etc. may cover. But never tried myself.
I even once drove the watch to the eBay centre (as it is 20 mins from me)...but they didn't accept it.
End result for me - I cannot use it for any watch of value.