Tightness value: +0.2%/min on rolex 116234?

[SangKim]

Hi,

I had my 116234 pressure tested at a private watch repair center on this past weekend. then they gave me it ave been done on a Proofmaster M V2. 10, with the following results:

Test pressure: +3.0 bar
Maximum deformation: +24.48um
Tightness value: +0.2 %/min
Test1 okay

They recommended to visit a certified Rolex service center because of Tightness value score. Can I know 'Tightness value: +0.2 %/min' and should I go to service center because of this? May I know standard score on these of rolex datejust?

Thanks in advance

[Tiktok]

I would be more concerned about it only being tested to 3 bar, this is what you would test a fashion watch to that doesn't have a screw down crown and only has a push on case back.

I would take all of these readings with a pinch of salt, it's not a true test for a water resistant watch that should be tested to 10 bar, ideally it should be tested to +10 bar pressure and -0.9 vacuum. I personally prefer the vacuum tester, it seems to find more leaks because it's effectively trying to pull the case apart unlike a pressure test which squash's the case together effectively nipping the seals tighter.

Rolex supply a vacuum tester for accrrdited workshops that tests to -0.9 bar and gives a good accurate test for most things apart from the deep sea and suchlike that needs a more specialist piece of kit.

This is just my opinion.

Edited March 16, 2017 by Tiktok