What is DLC coating?
Ventura has (rather: had ) their "Durinox" for steel and "Titanox" for titanium.
Rado has the Ceramica Multifunction, not pure digital, but still very nice.
Then, there is the Rosendahl 43103 Watch II. It has a hardened mineral crystal, and not much steel around it to scratch. A very nice watch (I have one for sale, BTW).
That's all I know.