Alol wrote:
If I have the serial number of a watch can i convey this to an AD so they can confirm that it is what it appears to be? Also can you retrospectively obtain copy certification for a watch if that paperwork is missing?
This is not really a service offered by Breitling, but you can ask. I once asked about the production, sales and service information on a late 1990s model and they could provide no information, whereas they seemed to have some information on a B-1. That said, it is unlikely they will provide any kind of authentication without it being looked at by a service centre. I have heard that a collector in the UK had successfully obtained a replacement COSC certificate, but that a US collector was refused.