I recently sold an Apple Watch on EBay with AppleCare. The lady that purchased it went into her local AppleStore to transfer and they said the watch wasn't covered. They gave her a hard time. I was able to verify coverage from my Apple Profile and sent her a screenshot clearly showing the coverage. They still said "no". It took a call with the AppleCare rep, the buyer, and myself allowing coverage to be moved. I guess it just depends on the rep. Good luck!