Any non-COSC Rolex?

[Maxy]

Do any of the modern Rolex comes without COSC and that extra 2-liner text? I remember 14060 was without COSC but don't remember seeing anything recently without COSC. Even the startup OP models are COSC certified. So, basically every Rolex now comes as Chronometer certified? Thanks.

[Chewbacca]

all are now cosc even cellini. but cellini do not label them as cosc on the face.

[kilyung]

I wonder how much longer Rolex will COSC certify their watches? With the new 3255 movement reportedly surpassing COSC specs, is COSC testing an expense that Rolex will do away with eventually?

[Highland Ranger]

Maybe there will be a cosc ii

Sent from my Nexus 6 using Tapatalk

[landroverking]

Maybe they should test
It to Grand Seiko standards.

[fishingbear]

Originally Posted by kilyung

I wonder how much longer Rolex will COSC certify their watches? With the new 3255 movement reportedly surpassing COSC specs, is COSC testing an expense that Rolex will do away with eventually?

I've thought the same thing.
Then, at least there will be less print crowded on the dials

[cenzor]

Originally Posted by kilyung

I wonder how much longer Rolex will COSC certify their watches? With the new 3255 movement reportedly surpassing COSC specs, is COSC testing an expense that Rolex will do away with eventually?

They should start sending them to (Grand) Seiko for certification.
The standards are tougher there :

[Rolex fan 61]

Does it really matter ??????

[anothernewphone]

Originally Posted by cenzor

They should start sending them to (Grand) Seiko for certification.
The standards are tougher there :

But Rolex tests to minus 1 / plus 5 for their "superlative chronometer."

[threemonkeys]

Originally Posted by landroverking

Maybe they should test
It to Grand Seiko standards.

Great comment.

[Afghanvet]

COSC is part of the Rolex lure and mystique... need to keep it.

[Andad]

As has been said, Rolex's own internal standards is tighter that Seiko but send your grand Seiko to me and I'll set it to my Sea Dweller - it runs at +0.5 sec/day when I wear it.
I can also check it against my Seiko Astron.

It seems that there will always be a more accurate watch.

The big question is would you wear some of them??

[versatile1]

Originally Posted by Highland Ranger

Maybe there will be a cosc ii

Sent from my Nexus 6 using Tapatalk

Or even a COSC-Dweller

[padi56]

Originally Posted by anothernewphone

But Rolex tests to minus 1 / plus 5 for their "superlative chronometer."

Afraid that's a Internet myth COSC certified chronometer" is not the Holy Grail of watchmaking as the European and Japanese equivalent is to a higher standard there and movements are tested in there cases that they will have for life of he watch.Today with the high quality of modern day robotised manufacturing, this test is not that important in reality. As today most decent modern watches from all countries even some from China like the Seagull movements, when adequately adjusted, should be able to match the performance specified by the now quite antiquated Swiss COSC test remember its for Swiss watches only.

A chronometer certificate is not a guarantee of future accuracy for life only the fact that for certification the bare uncased movement was tested at the COSC and passed at time of testing. Watch movements that have been certified can get out of adjustment and still perform quite poorly outside the COSC spec. Movements that are not certified could still exceed the COSC standards with just simple regulation.Many of today's manufacturers may have simply chosen to bypass the expense of the certification process its quite expensive to test every single movement. But today IMHO the COSC is little more than a pure marketing tool and means little in actual performance only the fact its been tested at that time.Now when the thousands of movements that get tested and then shipped back to the manufactures those that have passed plus the ones that fail yes some do fail even ones from Rolex.The failed movements are perhaps re-oiled tested then shipped back to the COSC to test again.Now a lot could happen to any movement on its way from being certified shipped back then stored then finally cased.In the case of Rolex they must have many thousands in store waiting to be cased then shipped around the world to the various ADs

The term "Superlative Chronometer" is a now trademark of Rolex. The addition of the word "Superlative" in front of the official designation of Chronometer is merely a Rolex marketing angle to give a more distinguished sound to the chronometer status of their products . As all watches that have earned the privilege of bearing the official Swiss designation of "Chronometer" have to meet the exact same C.O.S.C. standards for movements of Rolex size.So any words added before or after the official designation of "Chronometer" are merely more marketing which Rolex is very good at.There are not any different grades or levels of chronometer certification,for movements of Rolex size but Rolex would like you to think there are.Likewise, "Certified Chronometer" also means nothing different than just "Chronometer." It is a redundant phrase--since Chronometer status is the certification the certified is just more pure marketing, and you know what they say about marketing well it often baffles brains.


This is the COSC test spec used today in the first 10 days of testing the movement could vary by up to 10 seconds on a single 24 hour period and still pass the test






This is the old style COSC certificate before it was all computerised.

[watchwatcher]

Good stuff, Peter.

[joe100]

The COSC stuff is pure marketing. You don't need a good chronometer , you need a good watchmaker.

[superdog]

Originally Posted by kilyung

I wonder how much longer Rolex will COSC certify their watches? With the new 3255 movement reportedly surpassing COSC specs, is COSC testing an expense that Rolex will do away with eventually?

Maybe if they do away with the expense, they will have a price drop?

[stil]

Isn't the non-COSC 14060 technically COSC since the same Cal 3000 movement was COSC in other models?

[padi56]

Originally Posted by stil

Isn't the non-COSC 14060 technically COSC since the same Cal 3000 movement was COSC in other models?

Yes its exactly the same movement but not sent for testing, and going back a few years with the 6263 Daytona the SS models were not tested, but the gold models were but exactly the same Valjoux 72 movement in both.