Bergeon case opener vise set for Rolex oyster watches made for opening and closing grooved watch cases, including Rolex oyster watches. The vice stands twelve inches high. This set includes one movement holder with four adjustable, slip resistant plastic jaws, six milled grooved chucks to fit all Rolex production backs and an intermediate holder that acts as an adapter. The chucks, or rings, measure in mm 18.5, 20.2, 22.5, 26.5, 28.3 ,and 29.5.