A method for managing the use of the functions of a watch including a step of authenticating the wearer of the watch in order to authorize access to the functions, and a step of controlling the identity of the wearer of the watch at a determined period by verifying the validity of a digital identification element determined from at least one biometric information element of the wearer, and a step of unlocking access to the functions of the watch when this access has been locked, the step including the following sub steps: presentation of a graphic representation on an interface for broadcasting a visual piece of information of the watch; selection within a limited time interval of a sequence of at least two identification portions comprised in the graphic representation aiming at identifying the wearer, the sequence corresponding to an identification code of the wearer, and validation of the selected sequence.