Patent ID: 8256952

Claim:
A reversible watch case ( 1 ) against which is located on either side two removable elements ( 2 , 2 ′) possessing lugs ( 3 ) of said case ( 1 ), each element ( 2 , 2 ′) being connected to the watch case ( 1 ) by fixing means arranged in such a way that said element ( 2 , 2 ′) can be locked to the watch case ( 1 ) in a first stable position and a second stable position, the removable element ( 2 , 2 ′) also being actuatable to pivot at the removable element's center through 180.degree. about an axis perpendicular to a central axis of the watch case ( 1 ) in order to move from one of the stable positions to the other, which watch case is characterized in that each removable element ( 2 , 2 ′) comprises a contact side ( 4 ), this contact side ( 4 ) being held against a part ( 5 ) situated on a perimeter of the watch case ( 1 ) by an elastic member ( 6 ) arranged inside the middle of said case ( 1 ) and connected to the removable element ( 2 , 2 ′) through an opening ( 7 ) situated in the perimeter of the watch case ( 1 ), the opening ( 7 ) being arranged in line with the axis of rotation of the removable element ( 2 , 2 ′), the removable element ( 2 , 2 ′) being disengageable from either of the removable element's stable positions in order to allow its rotation through 180.degree. about the axis perpendicular to the central axis of the watch case ( 1 ), and the elastic member ( 6 ) acting on the removable element ( 2 , 2 ′) in order to return to either of the stable positions.