the miracles of the Brit sun .... LLOOLLLLL
besides jokes ( sorry I can't ever resist ... ) in my big opinion ( as I'm a big man in the range of 250 lbs.. LOOLL ) ..
" tropical " is a dial naturally faded to a different colour ( most times to brown with many different shades ).
a dial is " tropical " when :
a) it's almost uniform
b) is not damaged ( or at least there are no heavily damaged zones )
here for ex. is an IDF Heuer faded to dark brown ( not completely uniform .. sigghhhhh .. ) :
