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I’m itching to contribute to this thread.
I’ve still got a BNIB unworn 2018 126711 CHNR in the safe at the bank.
Working overseas is seriously handicapping my ability to get it on the timegrapher but it’s time will come. I’m interested to see what it does.
My 126710 LN is my daily and I know it gains about 1.2s/day but it’s worn pretty much 24/7 even after 6 years.
From what I’m summarising here, the newer 32xx movements keep the accuracy if worn more or less as a daily, until they may or may not suffer a more serious deviation after some 15 months of use IF they suffer the internal wear issue related to a Pinion?
I know Rolex will quietly modify this problem out of the movement so long term it doesn’t bother me, but the watch geek inside me is interested in the data.
FWIW my 1997 Speedy Pro, has always gained in the first 24 hours and lost in the second 24 hours. By the end of the cycle it’s accurate just before it stops. Anywhere inbetween it was somewhere else. It’s never been serviced from new and still retains the same precise gain/loss over its power reserve cycle.
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