Alex, I guess you are getting your "220V" idea from the writing on the switch, right? I've found that lots of things here in Japan are made to be exported also, so they build them to run the US standard as well as the Japanese standard.
That saw looks so VERY Japanese to me, I would be rather surprised if it is an import, but I've been wrong before
Nice saw, but where the heck would you put that thing
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward