Timepiece assembly with centring and attachment of a plate relative to a middle case.

摘要

The assembly (1) has a bottom plate (2), and a middle part (4) that is arranged to cooperate in abutment with the bottom plate. A securing unit (5) is utilized for securing the bottom plate to the middle part. The securing unit includes a screw (6) that is arranged to cooperate with a housing (7) comprising an axis (D0) in a screwed-in position. The screw is completely screwed into the housing, and a set of shoulders (8, 9) cooperates with a flange (10) on two surfaces or points. An independent claim is also included for a jewelry or clock element.