I'm looking at a new w/o IL model 642 in aluminum/stainless or a 442 in some kind of black finish. I'm prone toward the black, but, I will purchase the one that has the more durable finish. I understand that the 642 has some likd of lacquer/spray-on finish? that wears through with time? What's under the black finish? is it more durable? This will be in-the-pocket carry.

Advice and counsel would be appreciated.....