Apple replaced my watch with a new one (1st Gen) for free under the quality program.
I have the Apple iWatch, version 1, bought it June 2015, my battery has swollen up and pushed the glass face off. Seems Apple may have a battery issue too. I am four months out of warranty, I take it to the Apple Store Tuesday, lets see what they say. I feel this should be covered by Apple. Battery issues like this should not be a one year deal when they are not easily replaceable.
Let see what Apple does...