Apple does not recommend reusing the screws just so you know. You will need the correct specialized screwdriver to remove the band from the supplied adapter and to attach the band to the new adapter. Apple also lists a particular Loctite threadlocker to secure the screws to the adapter.
[doublepost=1462568309][/doublepost]So Thai did you buy the band or just try it on at this point? This color has been top on my classic leather band wishlist. May wait until fall to buy since we get in the 90s-100s during the summer. I'm also waiting to see it in a store and plan to wear my classic black band when I go in. It does look really dark in some of the photos. Thanks for posting them.