Attachment member for connecting a wrist strap to a watch case

Attachment member intended for being secured between a pair of horns of a watch case, comprising two pairs of horns, for connecting the watch case to an attachment end of a wrist strap, the attachment member comprising a coupling element configured to engage with the attachment end in order to assemble the coupling element and the attachment end by interlocking in a direction perpendicular or oblique to a plane defined by the two pairs of horns of the watch case, the attachment member further comprising a latch movably mounted in a recess of the attachment member between a locked position and an unlocked position enabling the assembly of the coupling element to the attachment end to be locked and unlocked, wherein the coupling element is configured to be located on a visible side of the attachment member when the assembly between the coupling element and the attachment end is not carried out, and in that said assembly is carried out directly in a single movement by interlocking the coupling element and the attachment end.