Welcome Danπ
Just a quick point. All Serenes come with the little slidey bit, but as it is usually open when you get it, most of us didn't know it was there!
I have had mine a year now and the outside is perfect but the glass took no time at all to get marked by the dial.
I think the two little rubber stops should have been a bit more prominent.
Going to have a go with jewelers rouge one of these days to get rid of the marks.
Glad you plucked up the courage to make your first post.
Andy T.