the old diver helmets (Altamarea logo e.g.)
Jules Verne novels
old sailing ships with bronze equipment
old diver equipment with bronze
and this look fits for me to the vintage PANERAIs, because for me
it was one reason I fell in love with the vintage PANERAIs and actual models which are near that look.
All those designs remind me of all those things mentioned above.
But the look of the Bronzo is only perfect for me when it is well worn and looks like an old instrument on a ship.
It would be perfect for me without date and a handwound movement instead of the automatic one.