They are 2 watches for two different kind of usage, more casual and sporty the 5712, more elegant and formal the 5054.
And that's imho the reason why the 5712 is more requested, because It's a pretty more versatile watch usable with casual Clothing in the same way you can use with a Formal suit.
I really love the 240 calibers and its decenterd micro rotor, just as i like the asimmetrical dial with power reserve and moonphases...so...i wasn't able to choose....