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Вроде бы действительно лучше

The Paraflex mechanism had previously been used only in the Cellini Prince and the Day-Date II, both of which are available only in precious- metal cases. In the Paraflex system, the spring that returns the upper bearing jewel to its original position is symmetri- cal and smooth on both its faces so that it can be inserted on both sides, which makes the assembly process much easier. The spring is also less likely to jump out of its anchorage when a strong blow strikes the watch. Its shape, which extends over the center of the balance staff, makes it less yielding, which improves its ability to resist deformation. Furthermore, the spring bears two markings: one for the maximum oil level and one for the minimum. The Paraflex system is another example of Rolex striving to take what’s already good and make it even better

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