Quote Originally Posted by earlofsodbury View Post
Seems a characteristically irrational bit of decision-making to leave the most vulnerable part of the entire watch untreated - e.g. it's the only hardened part of Sinn U-series divers unless you pay the extra for the hardened case.
Yes. Totally mad. Not sure MrB has that 100% right. I can't see why the bezel and lugs on my Alt1 would be hardened (as well as the barrel), and nothing of the front half of the case on SM500.