Abstract: The watch strap includes a first strand provided with a buckle with a tongue and a second strand for engaging in the buckle. To allow a rough adjustment of the length of the strap, the first strand includes a plurality of transverse orifices and central holes which are distributed from its free end. It is thus possible to cut the strand on a section that passes through one of the central holes, then to fit the buckle and tongue onto the new free end of the strand. This strap can be manufactured in one size for all wrist sizes.