Bonjour mon ami.
Unfortunately your clock is not aviation related. It is either a timepiece that was mounted in something and used as a desk clock, or perhaps it could have been an aftermarket item for people to mount in an automobile.
Unlike the British, the French normally used permanently mounted clocks in their aircraft.
Here are some examples of French aircraft clocks from my collection followed by a photo of the French military's blueprints for aircraft clocks during the Great War. The third photo is of a French Great War aviation pocket watch but these were generally not used in airplanes and instead were carried by observers in observation balloons since the balloons did not have much in the way of a cockpit in which to mount the standard French aircraft clock. These were mounted in leather carrying cases.
cordialement,
Jim