You will have difficulty finding a glass with a matt tension ring as all I found come with the chrome ring. I use the 316 glass from cousins then use a lolly stick to prise out the chrome ring. The wood does not scratch the glass. I then replace with a Matt ring. When I was last in anchor supplies in Nottingham they have a selection of Matt rings for sale. Give them a call. The loose movement may be due to the movement locking ring being missing. Again, very difficult to locate a new movement. Look out for a cosmetically bashed but working example on eBay.