Horotec Universal Key and 8 Rolex Caseback Die set
Set includes eight dies in standard Rolex sizes: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, 29.5 mm, 34.0mm, 36.5mm. Also included is the versatile Horotec Universal key. This Horotec tool can be used with all the different dies that are available to fit Baume Mercier, Rolex, Omega, Breitling and many other screw back style watch brands. Swiss Made.