I think there are certainly more appropriate pieces to choose while wearing a suite, but that depends on your style and your personality. Personally, I would go for something like a Patek or Vacheron which demonstrate class and elegance... but never a PO (though if I were to wear a PO, black would be the most appropriate color).
So, to reiterate, no, I would not wear that watch with a suit ever. (Exception would be the PO Professional Chrono which I have, and I do)