Thought I would put this to the test. And yes it is!! Use the blue side of an eraser (the part as a kid you always wondered what it was for), and just rub away! (I did try with a normal eraser too, but that doesn't work, you really need that hard blue ink eraser)
I am guessing it is rubbing away the oxide layer of the titanium, so the light scratches that don't go deeper than that oxide layer actually disappear.
I tested on my Casio Lineage, and it works remarkably well! Much better than I anticipated. It isn't back to "as new" condition, but it certainly went from "completely battered" to "slightly used" condition!
Works best on brushed surfaces, polished surfaces didn't improve much, luckily thats just a few small sections.
Bottom section of bracelet before treatment, top after erasing (top was equally battered as bottom):
Clasp before and after:
End result:
I am guessing it is rubbing away the oxide layer of the titanium, so the light scratches that don't go deeper than that oxide layer actually disappear.
I tested on my Casio Lineage, and it works remarkably well! Much better than I anticipated. It isn't back to "as new" condition, but it certainly went from "completely battered" to "slightly used" condition!
Works best on brushed surfaces, polished surfaces didn't improve much, luckily thats just a few small sections.
Bottom section of bracelet before treatment, top after erasing (top was equally battered as bottom):

Clasp before and after:


End result:


