Receipt
Hi I was wondering I could get a receipt for my Apple Watch series 3 so I have a proof of purchase when I sell it?
Apple Watch Series 3, watchOS 6
Question marked as
Ask the shop where you got the Watch Series 3 from.
FYI: To sell you do not need a proof.
You need to do this if you want to sell => Sell, give away, or protect a lost Apple Watch - Apple Support