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Old 20 July 2018, 12:24 PM   #11
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Quote:
Originally Posted by El Cascarrabias View Post
. . . regulate a 5 digit sub to current -2/+2 COSC standards?

Thinking of buying a random serial number 14060 but I'd like to have it regulated to tighter specs than -4/+6.
Rolex, in the past, never said that they regulated their watches to -4/+6, that is the criteria for a COSC test - not Rolexes out-the-door spec.

Their recent proclamation that "Superlative Chronometer" means -2/+2 came out without a real change to the movements at all. They are still tested at COSC to meet the -4/+6 chronometer spec., that has not changed.

They (hi-beat movements) have almost always been capable of better than COSC..
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