Corrector button and method for assembling such a corrector button onto a watch case

A watch case comprising a middle having a bed, having a tapped portion, and a corrector button comprising:

• a socket having an axis of revolution and having a threading arranged on the outer rim of a portion intended to be fitted by screwing onto a watch case, and having a cavity extending between a first end of the socket and a second end of the socket;
• a movable control rod engaged in the cavity of the socket, said movable control rod comprising a push-rod, having a rotation organ, and a push-button rigidly connected to said push-rod, each of the push-rod and push-button are configured to move in translation along said axis of revolution;
• and
• a return organ for repositioning said movable control rod into a rest position,
• wherein said cavity has a portion of polygonal cross-section,
• wherein said push-rod of said movable control rod comprises a portion having a complementary polygonal cross-section in respect of said portion of polygonal cross-section of said cavity, such that the rotation of the push-rod via the rotation organ drives the rotation of said socket,
• wherein said corrector button being screwed into said bed of said middle,
• wherein the push-button comprises an annular groove on an outer edge surface of the push-button, the annular groove being configured to receive a sealing organ,
• wherein the portion of the socket having the threading arranged on the outer rim is a median portion positioned between said first end of the socket and said second end of the socket, and
• wherein the return organ is positioned in a radial direction from the median portion of the socket having the threading.

A method for assembling a corrector button with a watch case, said corrector button comprising:

• a socket having an axis of revolution and having a threading arranged on the outer rim of a portion intended to be fitted by screwing onto a watch case, and having a cavity extending between a first end of the socket and a second end of the socket;
• a movable control rod engaged in the cavity of the socket, said movable control rod comprising a push-rod, having a rotation organ, and a push-button rigidly connected to said push-rod, each of the push-rod and push-button are configured to move in translation along said axis of revolution;
• and
• a return organ for repositioning said movable control rod into a rest position,
• wherein said cavity has a portion of polygonal cross-section, and wherein said push-rod of said movable control rod comprises a portion having a complementary polygonal cross-section in respect of said portion of polygonal cross-section of said cavity, such that the rotation of the push-rod via the rotation organ drives the rotation of said socket,
• wherein the push-button comprises an annular groove on an outer edge surface of the push-button, the annular groove being configured to receive a sealing organ,
• wherein the portion of the socket having the threading arranged on the outer rim is a median portion positioned between said first end of the socket and said second end of the socket, and
• wherein the return organ is positioned in a radial direction from the median portion of the socket having the threading,
• the method comprising a step of screwing said corrector button into a bed having a tapped portion and arranged at the middle of said watch case, the screwing step being performed by inserting a rotation tool inside the watch case, said rotation tool acting upon said push-rod by engaging said rotation tool into the rotation organ, the rotation of said push-rod driving the rotation of said socket and the screwing of said corrector button.