ATTACHMENT DEVICE OF A SETTING SYSTEM

The invention relates to an attachment device of a setting system (1) for a timepiece or piece of jewelry (6). Said device includes: - a setting mounting (3); - a coil spring (5) axially extending between the setting mounting (3) and the piece (6), the attachment system including a distal attachment element (14) arranged so as to receive, by press fitting, a distal end (17) of the spring (5) such that the spring (5) is attached to the piece (6); - a distal axial groove (52) provided in a distal end (17) of the spring (5) and extending axially; - a distal radial groove (51) provided in the distal end (17) of the spring (5) and extending peripherally; and - a first lug (141) rigidly connected to the distal attachment element (14). The first lug (141) is arranged so as to enable press fitting of the distal end (17) onto the distal attachment element (14) and engage with the distal radial groove (51) when the distal end (17) is press fit onto the distal attachment element (14) so as to axially lock the spring (5).