My Apple Watch is not connecting to my iPhone showing incorrect password but tha password is correct

Did you try the procedure in the ';Start a support request' section of:

How to remove Activation Lock - Apple Support

That is your only other option.

Request Online Activation Lock Removal.

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 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.

Otherwise the watch will be of no use to you.

Are you the ORIGINAL owner of the watch? If so, see:

If you forgot your Apple ID password - Apple Support

How to remove Activation Lock - Apple Support