[padi56]

Originally Posted by Koolpep

It's out of spec for any superlative chronometer and Rolex will fix it under warranty IF you have the warranty card. Without it, not sure if it's free.

Rolex:
To assure the efficiency of its development and production process, in 2015, Rolex introduced the Superlative Chronometer certification. To be awarded this designation, all finished watches, after coming out of production, go through a series of entirely automated checks. This high- technology control chain, exclusive to the brand, guarantees the precision of the watch to within -2/+2 seconds per day – a tolerance specific to Rolex. This is considerably more exacting than the requirement set by the Swiss Official Chronometer Testing Institute (COSC). It also ensures that the watch’s autonomy corresponds to its stated power reserve, that it is waterproof to the required depth and that the self-winding module functions properly. If the watch passes this string of tests without a hitch, it obtains the Superlative Chronometer certification and is given the green seal, which is coupled with a five-year guarantee. This step concludes the entire reliability process.

Around 2015 Rolex required all ADs to begin including green Superlative Chronometer tags with new customer purchases, rather than the red seal. And at this time many red seal watches in stock with the older COSC were given the green seals. In the real world the green seals were mainly to indicate the change to 5 year warranty. And fact the bare uncased movements are still tested at the COSC to a AVERAGE -4+6 daily seconds to get the COSC certification to have the word chronometer on the dial. Rolex then tests many at a time with movement in its case to the -2+2 precision spec. And this change was mainly done because of industry pressure, as competitors such as Omega had offered five year guarantees and new timing spec so Rolex had to follow. The term superlative chronometer has been on Rolex dials for many decades, and in the real world all the Rolex movements since the 15 series when regulated could match this new marketing spec.

Position Of Watch seconds Per Day Rolex precision test this is still a pass result.
Dial Up +2
Dial Down -1
6 o’clock +3
9 o’clock -3
3 o’clock +5