Professional key for opening Rolex and Tudor watches with 7 Milled chucks

The milled dies are mobile and grip the screw back perfectly.

·  7 Diameter SIZES:  18.5mm,  20.2mm,  22.5mm,  26.5mm,  28.3mm,  29.5mm,  36.5mm

· Designed to Opens & Close Oyster Watch Cases
· Works Most Other Grooved Type Waterproof Watch Cases
· 7 Grooved Metal Round Dies,suit for watch case
· Aluminum handle, metal dies