Dd you go through AppleCare. If so then they only want the watch face and will send you a new watch face.Just got off the phone with the advisor. I went through the same process when my Series 0 had battery issues.
They ship a box. I send it back. They send another one. A week to ten days total.
What a total mess for a brand new watch. I'd get faster service if I bought a new one.
If you went through after sales then you send everything back and you get a brand-new watch in the retail box with the extras. My delivery date on that is 15th to 22nd November so three weeks and they wont ship until ups get my watch back to them.