4131 vs 4130

[02acs]

Hope everyone is having a good weekend. I’ve looked online but wasn’t able to find a good comparison btw the 4130 and 4131 movements anywhere. I can find what the actual differences are, but not anyone saying if they realistically think the 4131 would offer any practical advantages in the long run. Talking mechanically, not the aesthetic changes. Since I practically won’t get one from a dealer anytime in the next decade, looking online and wondering if it makes sense to spend a little more for the newer movement, assuming I take the plunge.
Thanks so much!

[majidessa]

I'm not a movement expert but it seems Rolex made small improvements that are not gorund breaking. Hence, the small change in movement reference number from 4130 to 4131.

These improvements according to Rolex are:

"The new high-performance movement includes two patented mechanisms: Paraflex shock absorbers, which protect the oscillator from impact, and the Chronergy escapement, which withstands high magnetic fields and significantly reduces energy loss. The self-winding mechanism is also more durable thanks to the optimized ball bearing in the Perpetual rotor. The movement has been given a new look, with its bridges sporting an exclusive Rolex Côtes de Genève decoration".

The 4130 is already a very refined modern movement and since its inception it was subject to small refinements by Rolex.