Had my Top Gun Double Chrono 6 months in-this one has gone swimming/flying/daily beater and is holding nicely. Whereas any of my metal watches seems to pick up micro scratches, this one still looks absolutely mint.
I got brave one day and hit the scratch with a Scotchbrite pad and Cape Cod cloth. It took a lot of elbow grease, but I eventually erased the scratch. My case is polished ceramic though, not the Titanium/ceramic material.