I have a question concerning AD-stamp and service at Richemont. I have a high-end watch, which I bought pre-owned, and have an AD-stamp on the warranty-card/papers. Will I be able to send it for service at Richemont without them denying it and send it back? From what I've understood, if there isn't an AD-stamp, Richemont wont honor the warranty and service the watch. But this one have an AD-stamp but is bought pre-owned one year ago. Does it matter if I've opened the back-case for myself jus to have a look? Will they still take it and service it?
Thanks in advance.