If they are connected properly, then yes they would both ring @esm1 (perhaps the watch would ring after a slight delay - not 100% as I don't own one!).
Whoever calls you would ring your normal phone number - they would have no clue if you answered on your phone or watch unless you tell them.
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
