This tool works very well with Omega Speedmaster Professional models. It works with vintage as well as modern references. It was also found that it works well with pre-Professional, straight lug Speedmaster models as well as Seamaster 300 and Railmaster models. A complete list of reference can be found at bottom of this page.
This is a tool designed to help prevent scratching while opening your vintage or modern Omega Speedmaster (as well as some other models). Unlike the universal caseback openers, which have 3 “teeth” and are prone to slipping if not adjusted correctly, the ALPHA tool contains 6 teeth, which fill up every slot of your caseback. This gives you a much better overall grip on the caseback. If attempting to turn the Alpha tool by hand proves to be too difficult and the caseback does not want to give-in, you may use the drilled tunnel of the tool to get yourself better leverage and apply more force by using any common household item like a screw driver.