We're also given additional visual clues here. Like the length of hands. Shortest being hour. And 10, 20, 30, etc indicated around the Minute and Second rings.
What's curious is which is Minute and which is Second? It appears that the Minute might actually be the central hand. Because it'd take considerably more power to rotate that (comparatively) heavy hand every 60 seconds as opposed to the hair-thin hand up top. That couldn't be efficient.
Breguet lived 1747 to 1823 and also gave birth to the tourbillon. (thx, Wiki.) https://en.m.wikipedia.org/wiki/Abraham-Louis_Breguet