I've heard that some dealers can get their hands on them. They are $100 more expensive than the plexi version though. And I don't know if the caseback has Q or R series engraved. (Gen Q is plexi and R is sapphire)
I found a brutal black gunny strap in my office so I put it on the 605 and it really makes it look great. Sorry I'm at work so no Picture... Story of my life.