NAVIGATION SYSTEM FOR A WATCH

A navigation system () configured to guide a user along an itinerary leading to a determined geographic location, the system () including a watch () and a wireless electronic geolocation device () capable of generating guidance data relating to the itinerary, the watch () including an electronic horology movement () and a display interface () that alternately implements a mode for displaying horological information and a mode for displaying guidance information resulting from the guidance data using at least a first hand () and a second hand () included in the interface (), the guidance information relating to indications of a set direction to be followed to reach the geographic location and to an estimated travel time to the next change of direction.