This happened to me on Series 2. Took it to Apple Store, and they replaced it. They said it is a known issue with S2 watches and the SOP is to replace even if the watch is out of warranty.
We don't have any Apple Stores in Ireland so we don't generally get the benefit of Apple's SOP. Our best chance it to ring AppleCare, but if you're out of warranty, it can be difficult to get through to someone in the first place. I went through the online chat and managed to get an exception.
In a person-to-person situation, sarcasm is saying something outlandish with a straight face. But people know you in a person-to-person situation or can give you a curious glance afterwards and you can respond with a wink or smirk.
But online, none of that is possible. We take you at your word, unless there is an emoji at the end.
Otherwise, how do you know my entire post here is sarcasm or not?
You're using the 'sarcasm card' to take back comments you wrote that others don't agree with later. That's not how it works.