Rolex calibers-future resilient accuracy

[SOG DIVER]

A recent outside review complimented Rolex in-house calibers as accurate but faulted the oscillating axle as archaic. Additionally, the watchmaker faulted
the oscillating weight as scraping up against the movement bridges after slight shocks. This could result in broken axels and possibly jewel damage. Rolex uses the KIF shock system in most watches.

Ball bearing races tend to eliminate some of these issues, which Rolex through Tudor have incorporated into some of their references-the ETA 2824-2 and ETA 2892-A2 as examples. Use of outside movements by Tudor
seem to indicate interest by Rolex in the direction of ball bearings in the movements. Rolex has successfully used its current calibers for a good while like the 3130 and 3135, but.....

What do our watchmakers think?

[Ashton_Horologist]

The new 32xx family uses ball bearings as does the 4130 and 4160. Rolex is headed in that direction.

I personally like the axle, but yes, damage can occur with rubbing on the plate. But that also happens in a ball bearing oscillating weight. I guess the moral of the story is; service your watch!