Love my MK watch. Didn't get the crystals one, because I don't care for that style. I love this watch. I have the large white ceramic and I constantly get comments on it. Still looks fabulous after 3 years of hard wear.
As for TJ Maxx, it really depends on the neighborhood you're in. If you are in an upscale neighborhood, I've seen really high end clothes and bags (Yves St. Laurent, Chloe, Fendi). If you're not in a nice area, you won't see that stuff. Right now my TJ Maxx has some John Hardy jewelry I'm thinking about. I've seen much nicer watches than the MK there.
You never know what you're going to find there.