Abstract: A device for attaching the end of a strap-like member (14), notably a bracelet, to an object, notably a watch, comprising a housing (1,16,31) provided with two latch pins (3,18,33) adapted to be received in facing recesses of the object. At least one of these pins is able to occupy two positions, a first position in which it protrudes from said housing to come to engage in one of the recesses of the object, and a second position in which it is retracted. A rotatable or push-piece type movable control member (10,20,35) solid with a cam (10b,20a,35b) engaging with the inner end (39,18b,34) of one of the pins (3,18,33) and applied against this cam (10b,20b,35b) by biasing means (14,19,32), can be actuated to bring this pin (3,18,33) into the retracted position against the pressure exerted by the biasing means (4,19,32).