On older models. Date of Manfucture and S/N and such details were just on the outside label. Where do I find this information on these two?
(without connecting to a computer)
I don’t know about your drive, but the serial number of 3.5” drives is on the cover label and on a second label on the short edge of the casting.
You can test your S/N at WD’s warranty checker. The warranty is calculated on the basis of the manufacture date plus X years plus 1 month (?).
https://support.wdc.com/warranty/warrantystatus.aspx
https://cdn4.volusion.store/ovay6-hxgv9/v/vspfiles/photos/G02-0319-6.jpg?v-cache=1493148594
CrystalDiskInfo can also read the serial number from the disk which is stored in the IDENT tables

