I mean yes and no but I don't want to get into a conversation about austenitic and annealed materials. In real life daily use Titanium will get scratched no matter what.
I think the practical conclusion should still be : the watch will still scratch normally.
Anyways - the price for this watch is crazy. Almost the same price as a DD3285 GMT or a VSF 4130 Daytona.... I can't say it's good value at $500+
Grade 5 titanium is a beast, and the data on the matter is crystal clear: it’s harder and more scratch resistant than stainless steel.
But yes, it will still scratch and there’s no way to prevent it from developing signs of wear. People shouldn’t be shying away from it due to fear of scratches, though, when it’s actually superior to the alternatives in that regard.
Pricing is definitely up there, but I think Clean is gonna make a pretty penny on this.