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I don't think it's possible to compare those two refs Fiftysix a Quai de l'Ile, it's a matter of personal taste.
The Quai seems to address a modern tech oriented style whilst the Fiftysix with it's classic contemporary style is a ideal companion of the Piti Uomo and Style Aficionado.
The quality of movements is up to similar standards, the Geneva Seal may result some minor differences, but the key is they basically feature not the same USPs.
For me TWO yes, both show enduring recognisable style. But for me only in gold - because I anyway don't like steel watches.