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URWERK presents its new UR-202 with a steel case treated with AlTiN - Aluminum Titanium Nitride. AlTiN is a technical coating treatment originaly designed for industry for full slotting and aggressive machining of stainless steel. An AlTiN coating less than 4 microns thick has the effect of multiplying the resistance of the underlying metal to scratches, shocks, oxidation and even acids.

 
Hardness comparison figures:
Gold : 380Vickers
Steel : 600 Vickers
AlTiN coat : 3800 Vickers
Sapphire: 4000 Vickers

Technical Details