On Tuesday with pleasure as I am right about this one as well as the 5970. I've seen more 5970p's for sale than any other metal. The reason is simple. People want to fall deeply in love with a Platinum 5970 so much they buy one only to realise they are being untrue to their eyes and hearts. As for you mistake I'm sure you sacrificed your 5970p at the time for another watch that made your heart sing and not to put food on your table.
As we all say it's great we are all different.
Split second Chrono on a different level to a perpetual calendar with Chronograph??? Not sure about that if I thought that I would own one.
My prediction is you own another 5970 within 12 months or after your 5131p which ever comes first.
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M x