This Ruihua tool for professional watchmakers repair men jewelry stores has seven dies to open Rolex oyster type watches.

It is made of quality steel with precise sizes to fit the case backs to open Mens, Ladies and Midsize Rolex Watch with Date, Datejust, Daytona , Submariner, Gmt, Yatchmaster, Explorer , Sea dweller Deepsea 116660 of 36.50mm

Die sizes are as follows: 18.5mm 20.2mm 22.5mm 26.5mm 28.30mm 29.50mm 36.50mm