At this moment i have the white strap on it, but id didn't get a black strap with it, i asked already at the AD, and they don't know anything about it, and will check it and let me know, there a 2 white straps with it, one small, and one very big, and offcourse a metal one.
At this moment i will wear it for some days or maybe weeks, normally i don't wear a watch to long, like to change a little bit
Cheers,
Michel