Below is the copy/pasted content from the PDF that thathasarathkumar provided.
Thank you thathasarathkumar for this information.
Your watch and Laptop should be connect with same wifi
Step 1 : After clicking on “Run on Device”,
“Connected Devices” dialog box will open then click on “+” icon.
Step 2 : I hope you all know how to enable “Developer Options”
In Developer options enable “ADB debugging and Wireless debugging ”.
Step 3 : Scroll down in “Wireless debugging”.
You will see an IP address 192.166.143.1 and port 00123 enter those in respective boxes, after that click on Pair new device .
Step 4 : Here you get Pairing code 005632 and new port number 12345.
Enter those in respective boxes and click OK
Click on the device shown
In your watch it will look like this after connecting
It will take some time to run
After Successful running it will look like this
That’s it 
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