2X Quality Generic ROLEX Case TUBE with GASKET Watch PARTS The Sub Tube will Fit Most New Submariner Rolex Watches That Takes with 7.03 mm ~ Premium Quality, Made of Highest Quality 316L Swiss Stainless Steel. ~ All Parts are OEM, Made with the Same Specifications as the Original ~ Size of the Tube without Gasket : Ladies ( Dia 3.9 x 2.8 mm H )/ Gents ( Dia 4.4 x 3.2 mm H )/ Sub ( Dia 5.0 x 5.2 mm H )/ Sub-Ext ( Dia 5.0 x 6.2 mm )