Activation lock after purchasing from a second party, how to remove?

You can't remove it. Only the owner of the account used to lock it can remove the activation lock.

Talk to whoever you got the phone from. If they can't or won't remove the activation lock, it's useless. Get your money back or turn it over to the police. It's probably stolen.

Hello ~ The watch was not properly prepared for sale…it may indeed be a stolen device. Either the activation lock will have to be removed by the original owner or send it back for a refund. In the meantime take a look here as some of the information does pertain to Apple Watch:

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Also:

The All Too Common SAD Reality of Buying a Used iPad/iPhone

~Katana-San~

Stacethestar wrote:

I purchased an Apple Watch from a second party and there is an activation lock on it. What does the original owner need to do So that I am able to use the watch?

https://discussions.apple.com/content/attachment/b6a6ea10-bec8-4c29-8045-bc46fc0b59b1

They need to give you their apple id and password to remove the icloud activation lock.

The person that you bought this watch from needs to follow all the steps in this link;

Remove the Activation Lock so that the buyer can use it.

If they can't or won't then get your money back or recycle the watch and put it down as a bad experience.