New PO LM + titanium with Cal 8500 announced

[Ken Cox]

From a an extraordinarily thorough and detailed review of the Rolex 3135 movement:

"there still aren’t too many challengers to the Rolex triple crown of accuracy, reliability and durability – i.e. its toughness – for example, its ability to withstand the abuse of everyday life that most active people, both men and women, would hurl at it, and still keep on ticking. And not just keep on ticking, but to continue doing so accurately too. The only ones that come to mind are the ETA 2892-2A, the ETA 7750 (including their numerous variations and incarnations) and possibly Omega’s new caliber 8500. But unlike the first two movements, the latter one, notwithstanding the fact that it is their 3rd generation of Dr. George Daniel’s co-axial escapement, doesn’t have the advantage of over 20 years worth of use, abuse and refinement, so it’s still an open question as to its long term reliability.

Of these three movements which one do I like the best?

As for me, please keep in mind that no movement is perfect and that they all have their strengths and weaknesses. Having said that though there is absolutely no question in my mind, that I prefer the ETA 2892-2A over the other two. Okay, so it’s been around almost half a century and in many ways isn’t as sophisticated as the Rolex – no Breguet hairspring, or Parachrom hairspring material etc – but during its long lifetime in its best available chronometer version, it has proven itself to be an exceptionally accurate, reliable and tough movement."

http://www.chronometrie.com/rolex3135/rolex3135.html