NEW OYSTER WATCH CASE SCREW BACK OPENER FOR ROLEX SEA DWELLER DEEPSEA 116660
It requires a wrench or knob of at least 30.80mm and can be used with the Bergeon 5537 Rolex case opener. Compatible With Bergeon 5537 Rolex Case Opener. 7 SET WATCH OPENER CLOSER CASE SCREW BACK REMOVER FOR ROLEX 18.5MM -36.5MM 5537.