Device for fastening a bracelet to a watch case

摘要

An interchangeable watch strap attachment has a hinge (1) with axial bore for two spring spread pivots (8, 9) extending through an opening with a sliding counter pivot mounted with a return spring in a recess in the end pieces (19) with buttons (20) at the ends and an annular housing on the hinge with slot to locate against a hole in the foot (15) in a preferred orientation.