Annular rotating bezel system comprising a spring ring provided with at least two lugs

A watch case comprising a case middle and a system (6) provided with an annular rotating bezel rotatably mounted on the case middle, wherein the annular rotating bezel system includes a rotating bezel, a toothed ring having a toothing provided with a plurality of teeth regularly distributed over an edge of the toothed ring, and a spring ring which extends in a plane in which it is capable of deforming elastically along a radius, the spring ring cooperating elastically with the toothed ring, said toothed ring and said spring ring being held in an axial direction perpendicular to the plane of the movement in the bezel, either the toothed ring or the spring ring being arranged to be angularly joined to the rotating bezel, and the other being arranged to be angularly joined to the case middle, the spring ring including at least two lugs, each lug being configured to be elastically and radially engaged with the toothing of the toothed ring in at least one position of the bezel;

• wherein said at least two lugs are offset from each other by an offset angle, the or each offset angle between two successive lugs having a value different from an integer sub-multiple of 360 degrees, such that, in each position of the bezel, only one lug is elastically and radially engaged with the toothing the toothed ring.