I just got the titanium pad from Amazon a few guys have mentioned. It DOES work but with some caveats. I very gently, with almost no pressure, gave a few passes to my "scratch", which really was more of what I believe to be the titanium finish polished by pressure. The scratch, which went all the way across from one end to the other end of the top of my watch, disappeared. The downside is you do get some very light swirling that doesn't match the brushed finish slightly. Keep in mind this is under a bright light with me eyeballing the area and focusing on it. What I did was just very lightly brush the rest of the top of the watch so it all matched and it looks really good. If you put a very bright light on it and bring it up a few inches from your eye you will see the swirls, but other than that it's imperceptible. Did I take the coating off? Probably, and I could care less, fingerprints didn't seem to stick any more than the rest of the watch and the color didn't change at all, we'll see if that holds true with time.
As I was eyeballing the watch I noticed many other tiny little "scratches" all around the watch, this is just the way the Ti watches are going to wear. I am very careful with my watches, but what can you do? My prior silver SS and SBSS were completely abused, construction, working out, you name it and they are flawless to this day. This sure as hell will be my first and last Apple Ti watch I'll buy.