Method for making a watch case
AssigneesBiwi S.A., Montres Rado S.A.
InventorsPhilippe Savy, Michael Bach, Sébastien Bolzt, Bertrand Carrard, Clément Meyrat
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Abstract
An element made of elastomeric material (9) is made by overmoulding between the middle part (2) of a watch case and a support ring, in particular a casing ring (3) intended to support the watch movement. This allows the constraints of the inner form and inner machining of the middle part to be reduced, while allowing accurate positioning of the internal elements of the watch with respect to the middle part. The elastomeric element (9) can also assure sealing with the control stem and/or the crystal of the watch.
Claims13
A method for manufacturing a watch case including a middle part, a back cover and a support ring for supporting internal elements of the watch, said method comprising the steps of:
- manufacturing separately said support ring and said middle part;
- placing said support ring within said middle part while maintaining a gap between them, said support ring being held in a desired position within said middle part by means of at least one core which is positioned with respect to one or more reference surfaces of said middle part;
- forming at least a portion of an elastomeric element in said gap by moulding of an elastomeric material to fix said support ring in said desired position to the interior of said middle part via said elastomeric element.
Dependencies are inferred from the claim text.