This happened to my Series 0 last summer. Obviously, it was out of warranty by over 2 years. I took it to the Apple Store. They gave me a brand-new stainless s

This happened to my Series 0 last summer. Obviously, it was out of warranty by over 2 years. I took it to the Apple Store. They gave me a brand-new stainless steel Series 0. Apparently the battery swells sometimes, in the older watches, after a lot of use, and pops off the screen. That's what I call customer service. That's the experience I get over, and over, and over again, from Apple. That's why I keep coming back. Apple backs up its products. Take your Watch in, and give it a try.