Patent ID: 8142069
Filing Date: 2012-03-27
Classification: G04B

Abstract:
1. A device for securing a back cover onto a middle part of a watch, the device including: (a) an intermediate element made of a single piece to which the back cover is connected, wherein the intermediate element comprises a thread and the middle part comprises a complementary thread so that the intermediate element is screwed onto the middle part of the watch; and (b) a first element arranged in the back cover to allow the back cover to drive the intermediate element in rotation until the intermediate element reaches a locked position on the middle part, wherein the first element comprises an oblong recess that is located in the back cover and that houses a drive piece of the first element, and wherein a circular groove is formed in the back cover and the oblong recess is made in the circular groove, wherein the back cover is also pivotable relative to the intermediate element without the intermediate element being unscrewed for alignment with the 12 o'clock-6 o'clock axis of the watch.