A system connects a bracelet to a watch case by a link. The watch case includes a caseband and a back cover. The link includes a first hollow element and a second element partly nesting in the first hollow element. The first hollow element carries a first device to fasten to the watch case. The second element carries a second device to fasten to an adjacent bracelet link. The watch case includes a mechanical device arranged to pivot the first hollow element so that the first hollow element is pressed against the caseband of the watch case.