| 摘要 |
<p>Assembly for holding a balance spring including a stud including a surface for orienting a balance spring, and a stud-holder, which includes: a first housing for receiving the balance spring stud; means for securing the stud including a screw orthogonal to the stud; means of securing the stud-holder to an escapement mechanism. The screw partially passes through the stud to hold the stud in an indexed position. The stud includes a second housing for the contact-free passage of the screw. The stud-holder includes on either side of the first housing: an internal thread cooperating with the screw; a third bore for the passage of a head of the screw (5) cooperating in abutment with the orientation surface (7).</p> |
