US 12,405,579 B2
Production of an applique for a timepiece dial
Benjamin Bourg, Annemasse (FR); Daniel Fiammingo, Sciez (FR); Daniel Lopez, Chêne-Bourg (CH); and Nicolas Moretti, Chilly (FR)
Assigned to ROLEX SA, Geneva (CH)
Filed by ROLEX SA, Geneva (CH)
Filed on Oct. 19, 2021, as Appl. No. 17/505,451.
Claims priority of application No. 20203114 (EP), filed on Oct. 21, 2020.
Prior Publication US 2022/0121156 A1, Apr. 21, 2022
Int. Cl. G04D 3/00 (2006.01); G04B 19/10 (2006.01)
CPC G04D 3/0048 (2013.01) [G04B 19/10 (2013.01); G04D 3/0069 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method for producing an applique for a timepiece dial, the applique comprising at least two distinct portions made of a first material and a second material, respectively, the first and second materials being different, the applique comprising a lower surface by which the applique is intended to be fastened to the timepiece dial, an upper surface opposite the lower surface, and at least one side surface between the lower surface and the upper surface,
the method comprising:
in a first phase, forming at least a second blank made of the second material within or at least partially within a first blank made of the first material so as to obtain a blank of the applique for a timepiece dial, then
in a second phase, machining each of the first blank and the second blank, so as to modify a shape and a surface state of each of the first and second blanks of the applique blank,
wherein the machining in the second phase comprises:
routing the applique blank formed of the first blank made of the first material and the second blank made of the second material, the routing forming at least a portion of a contour of the applique blank and forming a cell in which the applique blank is arranged, and
surfacing the applique blank formed of the first blank made of the first material and the second blank made of the second material, the surfacing making it possible to form the side surface comprising the two materials in a juxtaposed arrangement.