The present invention concerns an alarm and
geolocation system for analogue watches, comprising an
alarm device which includes a short range communications module, a processor and an
energy storage device, housed in a supporting and containing element which can be fixed permanently to the watch, and a
reference device with a short range communications module configured to communicate with the short range communications module of the
alarm device, wherein the processor is programmed to calculate, based on at least one parameter of a
signal sent by the short range module of the
alarm device, the distance (D) between the alarm device and the
reference device, and to switch the state of the alarm device as a function of said distance (D).