Jumbo Rolex Watch Case Opener With Set of 6 Dies. 
The set comes with 4 reversible wrenches containing all the dies to open any rolex watch.
Dies size :  18.5mm , 20.2mm , 22.5mm , 26.5mm ,  28.3mm , 29.5mm ,
The two case holders can be fitted to a work bench should the need arise.