Abstract: A panel hook (1) designed for hooking a panel to be connected to the panel hock to a carrier, such as a rail, the panel hock comprising a strip (2) provided with a part (5) of I-shaped cross-section that is integral therewith, which part comprises a first flange (6), which races the strip, and a second flange (7), which forms a guide for a slide, wherein the slide engages round the second flange and comprises a hook-shaped element (15), wherein the l-shaped part comprises a profile between the flanges, and wherein the slide comprises at least, one projection (11) which engages the profile of the l-shaped part so as to prevent the slide from being moved in a first direction (13) along the second flange, whilst movement of the slide in an opposite, second direction (12) along the second flange is possible, a special feature being the fact that the panel hook further comprises a second slide (3) provided with a hook-shaped element (14), which second slide engages around the second flange, wherein the second slid

Abstract: The device for securing a watch strap to a watch casing comprises an intermediate element (1) to which is fixed the end of the watch strap (3), this intermediate element (1) being adapted to be received between the lugs (4) of the watch casing (2) by sliding in a complementary formation (10, 5) on the lateral surfaces of the intermediate element (1) and the internal surfaces of the lugs (4). The intermediate element (1) comprises a flap (11) pivoted about an axis (12) transverse to the watch strap and subject to a resilient action (15). This flap comprises a locking nose (16) coacting in service position with a locking surface (8) on the end surface of the watch casing (2). This nose 16 is applied by said resilient action (15) against this locking surface (8) when the intermediate element (1) is in the service position introduced between the lugs (4) of the casing (2).