Up until a week ago, I faced a similar decision: the new Seamaster 300 in steel, or the PO…. Both now have the 8900 series movement which I prefer for its quick hour setting when traveling (do I look forward to international travel again…).
My OB had me try on the new SM 300, love it’s dial, hands, movement, size, but a bit less the bracelet and clasp (not a fan of polished bracelet links that I only end up scratching up).
And the winner is, for me at least: a lovely (albeit weighty) PO GMT, with the Orca bezel, graces my wrist now. I do have a flair for GMT complications