Watch or item of jewelry including a case or setting including main and secondary slots that enable the fixture of interchangeable removable wristbands including an end link with an end piece with studs arranged to cooperate in a complementary manner with the secondary slots. The link includes a lock with a slide catch arranged to cooperate in a complementary manner and with minimal play with the main slot in a locking position, and the lock further includes a pushbutton operable by a user to move the slide catch away from the main slot and control an unlocking of the lock by retraction of the slide catch by an application of pressure to the pushbutton.