Amazon does this for Apple products. My recent Apple Watch purchase had its serial number on the invoice, which I managed to use to look up its date of manufact

Amazon does this for Apple products. My recent Apple Watch purchase had its serial number on the invoice, which I managed to use to look up its date of manufacture. (I needed one that works with a jailbreakable iPhone.) Amazon was motivated to include the serial number presumably because Apple stuff either had a lot of return fraud, or Apple themselves requested for the supply chain to be tightened up.