Iwatch warranty

Hello,

I have bought my Apple watch 16 months ago in United States but originaly I am from Europe. Now I have a problem with my watch in a sence that they cannot be charged properly therefore they runs only couple of hours before they must be charged again. Due to fact that international warranty is only for one year they cannot be repaired/switched for free. Moreover I have a model which is not supported in my country.

My question is that if I sell it to someone in US is there any chance that the warranty will be automaticaly extended?

Thank you