The latest offering on the market from Germany’s Sinn comes in the form of the 47mm U212 SDR – made from German submarine steel and ready to go 1000 metes deep with ya’ll. Only 212 units of the special edition SDR diver are being produced with the black hard coated “tegiment” steel. No-fog Ar dehumidifying tech keeps it all crystal clear on the display. Some words on German sub steel: the metal is extremely seawater resistant and non-magnetic.
A full look on the following page.