Hello I my iPhone fell in the water and I recently got a new one but it won’t connect to my watch because of an activation lock

Hello,

To remove Activation Lock you need to remember Apple ID Password

Here -->If you forgot your Apple ID password - Apple Support

How to remove Activation Lock - Apple Support

If you need help removing Activation Lock and have proof of purchase documentation, you can start an Activation Lock support request.

You can ask apple to remove the activation lock online on this page;

Remove the Activation Lock Here.

Or this;

If you can't remember/gain access to the apple id that paired the watch to the phone.Take the watch and it's receipt with the serial number along with some photo id and any other proof of ownership to an Apple Store and request that they remove the Activation Lock for you.