I'd get the 5970P, just because it's a beautiful watch, I like it, and also preserves its value well (for this kind of money, one must also think of this aspect). The 5101 is not that popular (relatively speaking) to the 5970P. I remembered my AD getting the 5101P for a customer within a few "weeks" that the customer have filled up a form to apply for this watch. Since then, the customer has not been as excited about PP, especially seeing how much the resale value has decreased in GD postings. I do understand his feelings, since the amount difference is huge. Hope this helps you. Just sharing my thoughts based on another person's experience.