Poll: Rolex Accuracy

[gingerbee]

+/- 2 seconds a day, maybe more if it gets more wrist time

[m4rty]

I have an older mid-1990's Air King and find that it gains time. To me, that's ok as I'm never late.


My most accurate is a GS 211 Snowflake....

Keep in mind I don't have a timegraph, but am surrounded by computers that depend on accurate clocks to generate time stamps for databases and that is/has been my observations.

[fishingbear]

Originally Posted by Tylerlsu2008

Is anyone else confused by the poll options?

Lots of options options options.
They are +2 options

[WilsdorfNDavis]

Originally Posted by fishingbear

Lots of options options options.
They are +2 options

[peshehodetz]

Mine is around + 0.2 to 0.3 sec per day. Need to wear at least 10 days to catch + 2 sec from the time I take it from the box.

[bp1000]

every single one of mine is +1 to +4 and they haven't deviated, some have been this way for 12-17 years.

I check each probably once or twice a year.

[hartsy]

I had lost a few seconds over several months until recent travel stint. I am now losing a second or so a day - I think the X-Ray machines got me a bit magnetized.

[Harry-57]

I took my Z Blue off the winder in the safe this week. I hadn't worn it since last December. It was exactly 60 minutes slow. Very impressive, but no more so than my Black Bay which was also exactly one hour slow having not been worn since BST clicked in. Mind you, my Z Blue threw its mainspring in 2020 so for some time it was only accurate twice a day.

[WilsdorfNDavis]

Originally Posted by Harry-57

I took my Z Blue off the winder in the safe this week. I hadn't worn it since last December. It was exactly 60 minutes slow. Very impressive, but no more so than my Black Bay which was also exactly one hour slow having not been worn since BST clicked in. Mind you, my Z Blue threw its mainspring in 2020 so for some time it was only accurate twice a day.

60 minutes in 5 months?


That's ~24 seconds a day mate...not good, not good.


(Shhh, I know, time change)

[Andad]

Originally Posted by WilsdorfNDavis

60 minutes in 5 months?


That's ~24 seconds a day mate...not good, not good.


(Shhh, I know, time change)

[Andad]

I have more than 4 watches that are in the first group.

No point in me voting for poll accuracy.

Did you think this through Steven?

[INC]

To me, the funny thing about the pursuit of accuracy is that you hate the versions that are absolutely accurate: the quartz versions

[Sandwich]

My 126710BLRO purchased in October 23 gains about 2s/day when left dial up. Slows by about 2s/day when resting crown up.

So with daily wear and resting face up at night, it tracks about +/-0.5s. As of now, it’s bang on the second with reference to atomic time.

Whereas my Yachtmaster 40 126622 purchased in November 22 is consistently -2-3s/day regardless of resting position.

I’m assuming the latter is better as it can be regulated to 0s and stay there without positional influence?

Can someone explain to me why this happens?

I would say the BLRO is highly accurate but isn’t precise as it gets affected by resting position whereas the YM is precise but not accurate in that it consistently slows by 2-3s regardless of it being worn or how it’s rested.

[steveclr]

I only rotate 2 watches and have never bothered to check. There would have to be a blatant problem for me to notice. It would have been interesting to see how many of us don't care about accuracy that much when its the principal function of a watch.

[csaltphoto]

Originally Posted by INC

To me, the funny thing about the pursuit of accuracy is that you hate the versions that are absolutely accurate: the quartz versions

I don't hate quartz at all. Remarkable innovation. Most of them are kinda fugly though. Rolexes are little more interesting in that they do it mechanically. And don't need a battery change.

I check my sub's 3130 fairly often and it's an average of +2spd. Some weeks +2.5 other weeks +1.5. I'm fine with that. Actually pretty astonishing over a 5 year run since service.

[Dirt]

Originally Posted by Sandwich

Can someone explain to me why this happens?

Put simply, it's a matter of gravity and friction complicated by manufacturing tolerances, fit up, allignments and temperature acting on all the above.
Obviously design elements are a factor.
No two watch movements are identical but as a number of developments continue to unfold, the gap between them is decreasing incrimentally.
Not to mention long term wear and tear on everything including lubricants.
To that the other factor is servicing.
While vital to the long term life of watches, there is no guarantee that a watch will necessarily run quite the same between services.

[Dirt]

Originally Posted by INC

To me, the funny thing about the pursuit of accuracy is that you hate the versions that are absolutely accurate: the quartz versions

And yet, Quartz watches aren't really absolutely accurate either

[padi56]

Originally Posted by Dirt

And yet, Quartz watches aren't really absolutely accurate either

Seiko re-issued a limited edition of the "Astron" in 2000 that used a special version of the 9F movement that was rated to ± 2 seconds per year after adjustment cannot get more accurate than that for sure.
Now certainly the Japanese movement accuracy was much better than the Rolex Oyster quartz movement.
Note 2: The 9F movement is reportedly designed to run fifty years before it needs servicing.
Note 3: Other Grand Seiko quartz models use the 8J movement. Even less is known about this movement.

[krounchou]

Originally Posted by Sandwich

My 126710BLRO purchased in October 23 gains about 2s/day when left dial up. Slows by about 2s/day when resting crown up.

So with daily wear and resting face up at night, it tracks about +/-0.5s. As of now, it’s bang on the second with reference to atomic time.

Whereas my Yachtmaster 40 126622 purchased in November 22 is consistently -2-3s/day regardless of resting position.

I’m assuming the latter is better as it can be regulated to 0s and stay there without positional influence?

Can someone explain to me why this happens?

I would say the BLRO is highly accurate but isn’t precise as it gets affected by resting position whereas the YM is precise but not accurate in that it consistently slows by 2-3s regardless of it being worn or how it’s rested.

It's generally always better to be a running fast than slow for watches. Watches are not meant to be +0 on every position but rather +0 on 24h as they are worn in different positions.

My SubD 2022 runs constantly +2.5 - +3s a day and my 16570 runs closer to +0 a day

[Old Expat Beast]

Originally Posted by padi56

Seiko re-issued a limited edition of the "Astron" in 2000 that used a special version of the 9F movement that was rated to ± 2 seconds per year after adjustment cannot get more accurate than that for sure.
Now certainly the Japanese movement accuracy was much better than the Rolex Oyster quartz movement.
Note 2: The 9F movement is reportedly designed to run fifty years before it needs servicing.
Note 3: Other Grand Seiko quartz models use the 8J movement. Even less is known about this movement.

The Seiko 9983 'Superior' movement issued in the late 1970s was rated to 5 secs a year. My bog standard GS SBGT235 with 9F only gained 2 secs all of last year. GS removed that '50 years with no service' line from all their marketing a few years ago, though.

[Dirt]

Originally Posted by Old Expat Beast

GS removed that '50 years with no service' line from all their marketing a few years ago, though.

Yes, i thought i had seen something about that quite a while ago.
Perhaps it was from yourself in another thread?

[Old Expat Beast]

Originally Posted by Dirt

Yes, i thought i had seen something about that quite a while ago.
Perhaps it was from yourself in another thread?

Perhaps I mentioned it before, it's been discussed since at least 2017: https://www.watchuseek.com/threads/g...-myth.4603461/