Patent ID: 11927921
Assignee: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A method for manufacturing an oscillating winding mass, said oscillating winding mass (1) being intended to be mounted for rotation on an arbor of the movement, said mass (1) comprising a main element (2) formed as a ring conferring the general form of the oscillating winding mass (1) and comprising an attachment (6), which is circular and is formed at a portion of a circumferential edge of the ring, for fixing on the movement, a heavy part allowing the oscillation of the mass (1) in response to the movement of the timepiece and to the force of gravity, wherein the method comprises a first step of manufacture of a main element (2) of the mass (1) in two superimposable parts (4, 5), a second step of manufacturing a decorative element (3), and a third step of assembling the main element (2) and the decorative element, (3) the decorative element (3) being held between the two parts (4, 5) by at least one end (11), the main element (2) comprising two superimposed parts (4, 5) connected one to the other, the decorative element (3) is held by the end (11) between the superimposed parts (4, 5) of the main element (2), and wherein the method further comprises forming the attachment (6), which is circular, at the portion of the circumferential edge of the ring, for fixing on the movement.