Abstract: Three-phase stator winding of a rotary electric machine and having: a plurality of coils each of which has two opposite ends; a plurality of first connection bridges, each of which defines a star connection of three coils and constitutes a star centre of the three coils by connecting a first end of each of the three coils to one another; and three second connection bridges which define a parallel connection of the star connections, are each provided with a corresponding pin defining a terminal of the three-phase stator winding towards the outside, and each of which connects a second end of a respective coil of each star connection to one another. Each second connection bridge has a seamless circular shape closed onto itself.