I have enjoyed my retrotwin immensely. After an initial minor problem that Paul rapidly corrected, the watch has been running flawlessly. It is a beautifully finished movement.
As far as the caliber 33. I had the honor and pleasure of meeting Paul at his "shop" and got to see the caliber 33. It is his movement as opposed to the retrotwin. The 33 contains his escapement. I found the Grande Second to be a stunning watch and upon returning home, ordered one. I look forward to getting it soon. The watch has a mesmorizing dead second feature with the tick of the watch every half second. It was the second hand that sold me on the watch as much as anything else. Once seen, there was an instant must have emotion. I also saw the caliber 33 with the moon. The moon is stunning and a fascinating complication. I decided against the moonphase because it did not fit my OCD personality but it is a beautiful watch none the less. Not only is the watch a beautiful piece of workmanship but it is also produced by one of the true masters in the watch world as well as a truly exceptional person (talented yet extraordinarily humble and modest).
Mitch