Second hand watch issues
I recently got an Apple se watch and was trying to set it up but it has an activation lock. I have been trying to contact the old owner for a while now with no response.
Apple Watch SE
You need to contact with the seller and ask to remove this device from their Apple ID. Unfortunately, there is no way around to by-pass this.
If you could reach to seller, you can send him/her the article below to how to remove Activation Lock for this device.
About Activation Lock on your Apple Watch - Apple Support (CA)
