Your accuracy expectations.

[Xerxes77]

+-2 sec/day

[osamu]

I don't really time my watches for exact +/- seconds per day, or else if it's a second or two beyond COSC it might bug me.

In general, as long as it's not more than a minute off within a week, I'm good. I would rarely ever wear the same watch for a week straight anyways.

I have to say though, sometimes it is satisfying to pick up my Grand Seiko Quartz watch after a month of not wearing it and having it still dead on to the second.

[actionkwj]

Originally Posted by JnmEaton

x2 I took half a lifetime to get here and at 39 I'm choosing to not sweat the small stuff. only OCD about my underwear and socks matching.....

Well your undies and socks HAVE TO MATCH


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[Rebel]

I'm with Padi and Tools. Whatever they say, I'm good with.

[GMTMasterDallas]

The person that told you that +/- 1.5 seconds/day is unacceptable obviously doesn't have a clue what they're talking about. That's saying that it would take close to 40 days (over a month!) to lose or gain a minute. This isn't a quartz watch... You're going to always lose or gain some time, but 1.5 seconds isn't even close to the point of concern. I'd say 4 seconds would be the minimum for where you should begin to worry.

[HoustonRoo]

My SD4K is about 5 seconds off. It's going in next week to be regulated.


I use the Watch Tracker app and I'm taking into account that my finger pressing the button to measure may be off by a tenth of a second or so.




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[Seaotter]

For me personally acceptable: -2 /+3


I own +10 Oyster Perpetual watches.
The accuracy is unbelievable. My 3255 = +3 seconds in 3 weeks.
Sea-Dweller 4000 with 3135 movement +0,2 second per day.

My old Explorer with Caliber 3000, +1 second per day (for many years).

One of the most important changes Rolex implemented a few years ago concerning precision is testing the movement in a closed case again after COSC tested the movement first.
That’s why Rolex now proudly states "COSC + Rolex certification after casing". This makes a world of difference !
A few years ago this type of certification was reserved for brands like Patek Philippe only.

After Casing.jpg

[Thuilln]

Originally Posted by gmtmasterdallas

the person that told you that +/- 1.5 seconds/day is unacceptable obviously doesn't have a clue what they're talking about. That's saying that it would take close to 40 days (over a month!) to lose or gain a minute. This isn't a quartz watch... You're going to always lose or gain some time, but 1.5 seconds isn't even close to the point of concern. I'd say 4 seconds would be the minimum for where you should begin to worry.

+1

[jrbar-on]

I think that the watch should perform +/-2 sec per day on average. The real question is how many days should you need to average to get this rate? To me, if my watch averages +/-2 per day over a week then I'm good.

Cheers,

Jonathan

[ivanos]

-1 per day for my 3135 now.

[run23]

In theory I don't care that much, but when I get a new (new for me) watch I end up obsessively timing it for the first month or two for no good reason.

That being said, my new (to me) pre-ceramic Sub is averaging less than a second/day fast, so I'm definitely happy. I'm not sure how long a 14 year old Rolex can keep that level of accuracy, but as long as it is around CoSC I'm fine with it. It would probably have to be 10-15 sec/day off before I spent the money to get it serviced unless it was around the time I should be getting it serviced anyway.

[breitlings]

For a rolex. Cosc or better. For other watches a bit looser.

[speedmaster73]

Originally Posted by Hollister

OK, well it must be something else, as there seems little doubt that the accuracy has improved almost to an unsurpassable degree.

Personally I think it's utterly extraordinary that my new OP39 is within a second a day, and has been since I got it 6 or 7 weeks ago. None of my three old subs (1680, 5513 and 16610) can do that.

its just the individual watch. my ETA 7750 Panerai runs +1 sec per day as does my ETA 2892 IWC.....

my DSSD-B runs -1.5 per day

[speedmaster73]

Originally Posted by Wooddog44

Minus anything or plus more than 4-5 sec/day would mean regulation/service imo...

consistency daily is just as important....i would rather a watch that runs +7 per day than a watch that gains a second one day than loses 3 seconds the next day and than gains 2 seconds day 3..etc....

[Boothroyd]

I check how the watch I am wearing has run for a week or so prior to rotating watches. And they all seem to run about 15-30 seconds fast a week--extremely pleased with that. Works for me.

[G'ed]

During first few months of ownership, my current SD4K running +3 to +4 daily. Although it's still within chronometer standard but since Rolex advertised -2/+2, I'm a bit sour. I knew they could done better as my previous SubC is running close to +0.5s daily.

After 6 months of daily use, it's running consistently +1 (with a bit of resting positioning help).

[Seaotter]

Originally Posted by G'ed

During first few months of ownership, my current SD4K running +3 to +4 daily. Although it's still within chronometer standard but since Rolex advertised -2/+2, I'm a bit sour. I knew they could done better as my previous SubC is running close to +0.5s daily.

After 6 months of daily use, it's running consistently +1 (with a bit of resting positioning help).

Crown down ?

[watchwatcher]

I would rather have a watch run a little fast than slow.

[G'ed]

Originally Posted by Seaotter

Crown down ?

Yep, crown down which is somehow opposite behaviour of my previous SubC

[padi56]

Originally Posted by Hollister

I don't think that can possibly be true, can it? Could you post a link to your source on this one?

Have a read of below thread but do not reply in that thread.

https://www.rolexforums.com/showthre...ha+Chronograph

[kilyung]

Not very important to me as long as my watches are reasonably accurate within a 24 hr period as I rotate frequently and also reset (play with) my watch every morning.

[Otto76]

I used to track this with an app, then gradually didn't care enough to keep doing it. Just checked my Sub, which is overdue for a service, and it's +12s after almost 2 weeks. Well within my expectations.

[lord91]

the ones advertised, obviously, but would worry only when out of COSC specs. However, thankfully, i am not ocd about this, only rarely checking to make sure it goes as it should.

[JnmEaton]

Originally Posted by actionkwj

Well your undies and socks HAVE TO MATCH


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YYYYYYEEEEEESSSSS! Finally! Someone that understands!

[hbombkid]

My sub c is unreal i timed it all the time and it was 0.01 over a 2 week period. Yea with one of those apps so not completely accurate but i had an idea how accurate my Sub is. I would probably be annoyed if I got a new watch and it was not that good, but I would quickly get over it. I think I would need to be off 15-20 sec a day for me to send it in.

[Will1979]

Timing was something I used to get worked up about but not much anymore. I rotate my watches enough where I'm not sure I'd notice. I certainly wouldn't send a Rolex in for regulation for anything less than -5/+7. I just took my wife's Cartier in for a new battery and had to take it to a competent watchmaker a week later when it stopped. The watchmaker found dust or other gunk preventing adequate battery contact -- highlighting to me the risk of opening up a case back for trivial issues.

[snyde]

I used to track the accuracy for my watches. I now just set it and forget it. Since I have few I wear throughout the week, I will set them in the morning before I leave for work. If they happen to be running after a day or two, even better.

[Ledesc]

I was following accuracy on my less than 2 months old BLNR.
To be sure...


Now, I will do it only from time to time to check.

[G'ed]

Originally Posted by Ledesc

I was following accuracy on my less than 2 months old BLNR.
To be sure...

Now, I will do it only from time to time to check.

Bring it to RSC now! There might be a battery inside

[JnmEaton]

If I was a Navy Seal.........
jumping out of an airplane........
reaching terminal velocity.............
ground is getting closer............
low altitude parachute release..........

I'd need better than +/- 2 sec.........

but then I'd be wearing a G-Shock Frogman or something, LOL