How many turns does this motor have?
This motor is known by most people as a 27 turns motor. This is only partially true, in the united states this motor does indeed have 27 turns. But the version of this motor that is being sold in europe does have 23 turns.

How do I recognize what motor I have?
Well, the american motor is a kind of matte black, while the european version is more a shiny kind of black. Because of the shiny finish at the european version, the endbell look a bit to green. some say the housing looks a bit to green too, but in my opinion that's not.
The motor on the picture above is as you can see an european version.