Posted this elsewhere, but better post it here, too. I saw this in the Wonder Room in Selfridges just before Christmas, was shocked at just how amazing the dial was, then I saw the price and said to myself that it'd have to wait a few years, but of course...
I know the Quattro by speculating on CH24. I do it with more watches. Some watches decrease, price alarms in my mailbox. If a watch i want sold, i think somebody else bought a great watch. The Quattro is a good choice.