Sky Dweller and Milgauss Bracelet Swap

[GoCubsGo72]

Well, here's an odd question - figured I'd ask the experts:

As you may recall I purchased a Z Blue Milgauss. I took off the SS bracelet and put it on a Rubber B Strap. I like the new black Sky Dweller, but want the flexibility of a bracelet that is worry free (from water, etc).

So my question is: can I use my SS Milgauss Bracelet and put it on the Sky Dweller? Among other things, I'm not sure if one being a 40mm and the other being a 42mm makes it a different size bracelet?