A watch, comprising a watch face (1), a watch strap (2), hinge rod assemblies (3), and fasteners (4). Two ends of the watch strap (2) are connected to the watch face (1) by means of the hinge rod assemblies (3); the hinge rod assemblies (3) each comprise first hinge rods (311) and second hinge rods (312) that are hinged to one another; and the fasteners (4) are used to fix the relative positions of the first hinge rods (311) and the second hinge rods (312), so that the length of the hinge rod assemblies (3) can be fixed at any position, that is, the overall length of the watch strap (2) and the hinge rod assemblies (3) can be fixed at any position.