Sinn 917 GR, Instructions For Use Manual

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8
Innovations and authentications
one of our most important inventions is the oil-free diapal technology, based
on low-friction materials for the key functional parts of the watch, enabling
them to run without lubrication. this technology was first employed in our
jubilee model, the palladium alloy/white gold Frankfurt Financial district
Watch. tegiMent technology, with which Sinn achieves a virtually scratch
resistance surface hardness up to 1500 hv (vickers hardness) for its stainless
steel watches, represents another milestone. other innovations include diving
watches made from original submarine steel, as used in the construction
of the outer shell of german class 212 submarines. germanischer lloyd,
the world's biggest classification society providing marine safety services,
has been testing the aspects of water and pressure resistance since 2005.
Moreover, an official authentication process conducted by germanischer
lloyd in 2006, Sinn diving watches as diving gear for the very first time in
the watch making sector and tested them in keeping with european diving
equipment standards. the result: these timepieces passed the temperature
resistance and functionality tests with a sensational success. all test results
are authenticated with signature and seal.