Yeah, I got me a cape cod polishing cloth from the same store I bought the strap. Curious to see the outcome given the current toning on my Adraga.You can use cape cod polishing foil cloth or any other metal polish if you want to bring back shinny like new. Use micro fiber fabrics to avoid scratches. Cape cod on Amazon.
Mine has some patina but nothing like yours! I have Cape Cod polishing cloths but I've not touched it yet. Maybe it's because that I keep it stored in a watch box when I'm not wearing it, although I live near the sea (about 4 Km away) but currently I have 43% humidity inside the house.I really dont know how you people keep your Adraga with a shiny cooper look. Mine is fully toned (patine) and there is no sign of shine other then on the inside (under glass).
PS - I have switched the original strap (that I always felt was too thick and did not match the watch size) with an Hirsch 22mm Liberty model. The store that sold it to me, punched new holes to take in the OEM buckle.