I have a 31mm Rolex and I do love it but I wear my White J12 everyday.. My Rolex hardly see's the light of day, For a more casual easy to wear watch, I say go with the J12.. Its perfect! I have had mine over 2 years and still love it more then any of my other things.
Fully agree! I'm wearing my J12 everyday, for business and weekends. I like it that the J12 is scratch free, even after almost one year wearing, it still looks brand new. My Rolex is just sleeping in the safe. Anyway, good luck on your decision and keep us informed
