I´ve enjoyed the reading a lot, my friend.
Your research work made is impressive, for our pleasure reading it and admiring such a nice and cool early FF.
Huge congrats for your watch and for the work made.
Searching the net, I´ve found an earliest FF (Lip FF, certanlly) that has the hour and minute hands with the triangle in the extrem... but you must know that this model is a 35 mm model made for the CIEPM.
Your watch only has this kind of hand in the minute hand, and your hand is longer because your watch is a 41 mm. But them existed, of course.
Congrats and thanks again.... and waiting for part II!
Best, Claude.
Emilio