simple synchronous single winding motor
It appears that this may be a claw-pole motor. A claw-pole motor would have metal prongs surrounding the rotor that form alternating north and south poles by ever other prong entering the rotor area from opposite sides of the coil. There should be an air gap between the prongs and between each prong and the housing on the opposite side of the coil. There does not seem to be any mechanism to insure that the motor starts in the same direction every time it is turned on. It does not matter which way a microwave oven tray turns. A fan or pump can also be designed so that id doesn't matter which way it turns.

This is not a version of a shaded pole motor. It is either a permanent-magnet synchronous or reluctance synchronous motor.

Here is a picture of the rotor of an automotive alternator. The north and south poles are formed in the same way.



This diagram of a claw-pole stator is a little more difficult to understand, but is shows the same type of construction.