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Yesterday, 01:53 PM | #1 |
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Are all 11 series subs "superlative chronometers"?
As in the Rolex +2/-2 (or +3/-1)? Did all 11 series come with the green tags that indicate this as well as written on dial?
Or did any of the 11 series ship as COSC certified only (+6/-4)? Is there any actual difference at this stage (10+ years) after manufacture? Presumably any of these 3130/3135s going in for RSC service would come out identical, correct? |
Yesterday, 02:39 PM | #2 |
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The COSC certification was defined as -4 to +6 seconds per day prior to 2015, while the Superlative Chronometer with the new standard has been guaranteed at -2 to +2 seconds per day since then. The term “Superlative Chronometer” did not carry the same meaning before 2015 as it does after. I assume the RSC will regulate it to that standard before returning it. Obviously, you can’t expect a vintage or neo vintage watch to return with -2 to +2 accuracy, but that doesn’t mean it can’t happen.
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Yesterday, 11:20 PM | #3 | |
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Quote:
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Today, 01:15 AM | #4 |
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Not really.
COSC is still -4/+6, it has not changed. It is a Swiss test facility, independent from Rolex, that conducts these tests in order to put "chronometer" on the dial of a Swiss watch by Swiss law. These are test parameters that the watch must meet during the tests. Rolex has stated that they now regulate to -2/+2 and that is what their "superlative" means. They rolled out the green tag at the same time they made this marketing announcement and their in-house regulating criteria known.
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