Sinn watch ux gsg 9 ezm 2b rubber the rubber strap release of the traditional ux gsg 9 watch is a relatively new addition to the sinn diving watches collection submarine steel is used in the production of the timepiece to make it resistant to seawater influence and magnetic fields the bezel has been enforced so that it keeps on measuring elapsed time even in the toughest of conditions additional features include a date window at the 3 o clock mark temperature stabilized chronometer crown