Accuracy

[Spartans71]

I was lucky enough to obtain A brand new Submariner 116610LV. I was reviewing the accuracy and according to Rolex, should be +2 to -2 seconds per day. It seems that it’s running around -3 seconds daily. I know, it’s not that big of a deal, however when spending a lot of cash, I do want perfection. Anyways, is there a “break in” period for the watch to settle into the expected range? And if so how long should I wait before going to my AD? Thanks

[exador]

Give it a full wind (>40 turns) and time in different positions. You're looking for an average +/- 2 secs.

[schoolboy]

Supposedly there is a break in period, i am not sure though.

Try resting it with the dial up at nights, and that might speed it up a bit.

[Muxi]

Originally Posted by schoolboy

Supposedly there is a break in period, i am not sure though.

Try resting it with the dial up at nights, and that might speed it up a bit.

Agree. Once, I thought my black c500 started going slow from +0.5 sec a day. It turned out that I was putting it down on a watch case crown side down. When I placed in in the watch roll dial facing up, it went back to +0.5 sec a day.

[schoolboy]

Also, the accuracy per day isn’t necessarily measured in one day.

You’re supposed to say set it to your cell phone, exact time the second.

Then, 15 days later check what has happened.

Take the difference in time, and divide it by 15 (because of the days that have elapsed) and that is how you find an average accuracy per day.

I’ve done it over 15 days...

Sometimes over a month...

I think the longer you wait to check it the truer the average will be.

[AlexMachine]

My new DJ41 was 2-3s off every day for the first 2 or 3 weeks, after that, it has been -+0,5s/day for past 2 months. I wear it daily about 14 hours and after that Crown up over night.

[vette boy 52]

Originally Posted by AlexMachine

My new DJ41 was 2-3s off every day for the first 2 or 3 weeks, after that, it has been -+0,5s/day for past 2 months. I wear it daily about 14 hours and after that Crown up over night.

My story with my DJ 41 pretty well reflects this. And I do put mine crown up or dial up at night. If you will look Rolex gives the accuracy rating with the timepiece "On the Wrist".

Your timepiece is running fine, enjoy it.

[Rori]

Interesting comments here. My SD43 is within Rolex standards so far but surprisingly my Tudor GMT is more accurate. 7 seconds in 2 weeks!

[nda]

My new Rolex loses -2 seconds a day. However, as others have said, leaving it flat with the dial up overnight restores it to accuracy, it certainly has in my case.

[Rolexoman]

My older DJII gains about 2-3 secs a day on avg over 7 days of wearing and I used to obsess about this but now it’s not a bother, as Peter ( Padi ) would say ...There are 86,400 secs in a day and if your watch only gains or loses 2-4 secs a day that is a pretty spectacular feat

I figure if all my watches stay within COSC specs and the important part is staying consistent as well then don’t worry .

I have tried different resting positions for my DJII and it seems to not matter, maybe if I had a timegrapher I could do some testing but I would rather put those funds towards another watch

[robbyrolex]

My Exp. 214270 MK2 runs a fraction over +2 a day.
My Tudor BB41 with ETA is currently averaging a
fraction under +2 a day.

I expect the Exp. to keep +-2 a day but
am absolutely amazed my Tudor BB41 with
ETA 2824 has settled in at approx. +2 a day
over the first 6 weeks of wear since new.
The first month was approx. +3 per day,
the past 2 weeks it is running just under +2 a day.

I probably, like many, prefer my watches to run a bit fast than slow.

[winst]

Originally Posted by robbyrolex

My Exp. 214270 MK2 runs a fraction over +2 a day.
My Tudor BB41 with ETA is currently averaging a
fraction under +2 a day.

I expect the Exp. to keep +-2 a day but
am absolutely amazed my Tudor BB41 with
ETA 2824 has settled in at approx. +2 a day
over the first 6 weeks of wear since new.
The first month was approx. +3 per day,
the past 2 weeks it is running just under +2 a day.

I probably, like many, prefer my watches to run a bit fast than slow.

Funnily enough my ETA Tudor BB41 is running slow - losing about 0.75 sec a day over the last 16 days since I started monitoring it. Got to say though I am very impressed with it so far.

[padi56]

Originally Posted by Spartans71

I was lucky enough to obtain A brand new Submariner 116610LV. I was reviewing the accuracy and according to Rolex, should be +2 to -2 seconds per day. It seems that it’s running around -3 seconds daily. I know, it’s not that big of a deal, however when spending a lot of cash, I do want perfection. Anyways, is there a “break in” period for the watch to settle into the expected range? And if so how long should I wait before going to my AD? Thanks

Afraid nothing is 100% perfection accuracy with any purely mechanical watch any brand and any price.When movement is tested by Rolex on a machine in a controlled environment movement could pass the -2+2 spec at time of testing.But on the wrist thats a different matter as there are many many variables to overcome.Such as earth's gravity, metal expansion and contraction,mainspring power-reserve, temperature variations, subtle changes in lubrication and friction, shocks, and so on.So its possible watches could deviate by a second or so almost daily, then by resting overnight in different positions could balance out. But once time keeping drifts way outside spec not talking about a few seconds either way watch will need regulation a very simple task.Just because its been tested on a machine to -2+2 this dont mean it will be exactly the same every day for life its mechanical.

[Spartans71]

Appreciate everyone’s input. Will monitor, but not overly obsess over it

[Tony1T]

It should settle down. Both mine did.

[pbubsy]

My latest acquisition, a SD43, has been on wrist for the past week. Its been consistently running -10 a day. Figure I'll give it a couple months and see where it's at. I just reset it to be a few minutes fast and figure it'll be about a month before I end up running a minute slow if it stays consistent. Honestly, it's not worth it to me to send it in unless it starts running + or - more than 10 seconds. I'm right at the threshold. For watches that DON'T have an accuracy guarantee, I'm good with 15 seconds in either direction before I get it regulated.

I've found most of my watches start running faster eventually so starting off by losing time isn't so bad. A little disappointed though since my 7.5 year old DSSD runs consistently +5 seconds a week on average. That watch has given me high expectations of Rolex. I was hoping my shiny new SD43 would be close to that out of the box being that it's supposed to be more accurate/advanced.

A lot of the watches I do or have owned with ETA movements seem to be equally or even MORE accurate than some very nice in house movements. Hell, if you want near absolute accuracy in a watch that's MOSTLY mechanical, get a Seiko Spring Drive. Mine has been running at maybe 2 seconds fast per year for the past 6 years. Incredible. The most accurate mechanical watch I've owned to date is my PAM111. It ran at +4 seconds per MONTH. Not bad at all for a slow beating Unitas movement.

[GarbanzoNegro]

I’d send it back to get it regulated. Should stay within advertised specs

[Yuri.Popov]

I would try what the others have mentioned about resting the dial up at nights but I dont think thats a major issue. If is was making you late for work then that would be a huge problem. Hope it works it self out
Enjoy your beautiful watch

[Finfin]

My DSSD (126660) started out new ~2 years ago at -2 spd and then after half a year drifted to -5, -8 and now -12. I don't wear this one daily making accurate measurement more difficult. No matter how I wear it, losing 12 spd is enough to motivate me to send it to RSC.

[EEpro]

Originally Posted by Spartans71

I was lucky enough to obtain A brand new Submariner 116610LV. I was reviewing the accuracy and according to Rolex, should be +2 to -2 seconds per day. It seems that it’s running around -3 seconds daily. I know, it’s not that big of a deal, however when spending a lot of cash, I do want perfection. Anyways, is there a “break in” period for the watch to settle into the expected range? And if so how long should I wait before going to my AD? Thanks

That +\-2 spec is the average of all positions. Not necessarily what you'll get when you wear it. If you've worn it a month and it is consistent then have it regulated to add +3 spd. It takes 3 minutes to do at AD's watchmaker.


Sent from my iPhone using Tapatalk

[Fredcohiba]

For almost a year my brand new DJ 41 was about -4.0 per day consistently.
Local AD worked on it under warranty and now it is 0.00 per day.

[Andad]

Originally Posted by EEpro

That +\-2 spec is the average of all positions. Not necessarily what you'll get when you wear it. If you've worn it a month and it is consistent then have it regulated to add +3 spd. It takes 3 minutes to do at AD's watchmaker.


Sent from my iPhone using Tapatalk

[Spartans71]

Rolex Service Center is in Dallas. I will give it a month. If it’s still outside of specs, I’ll stop by and have them look at it.... btw, happy 2020!

[nevergiveup]

Don't be so sure if you send in your Rolex to rcs for 3 sec fast or slow to get it 2 sec. It might come back with worse acc. I been there done that.

[joli160]

Regulating it for one second is overly obsessed

Your watch is running 99.996% accurate, if that is not perfection what else is

[Spartans71]

Originally Posted by joli160

Regulating it for one second is overly obsessed

Your watch is running 99.996% accurate, if that is not perfection what else is

I hear you. I just feel that if I pay a lot for something, and it’s not in specs (although still very close) shouldn’t I get what I pay for?

[Tools]

Originally Posted by Spartans71

I hear you. I just feel that if I pay a lot for something, and it’s not in specs (although still very close) shouldn’t I get what I pay for?

You can bang your shoe on the counter and demand everything in life that you think that you deserve.

If your watch is consistently running at -3 seconds, then it is almost 100% accurate as it is not showing any deviation. A watch calibrated to run -2/+2 is actually expected to be within this 4 second deviation while in use, which yours is.

Naturally, if you are dissatisfied, take it in for regulation to be more precise; that is what the warranty is for.

[watchmework]

Originally Posted by Spartans71

I hear you. I just feel that if I pay a lot for something, and it’s not in specs (although still very close) shouldn’t I get what I pay for?

It seems like the only way you're going to be happy is to take the watch in to the RSC and have them take a look at it. I'd caution you though that you never know and you could get your watch back and something else could be wrong with it...not saying it will happen but I've seen where other members send their watch in for something small and it comes back with a scratched case or something like that. Best of luck in your decision

[The Libertine]

Originally Posted by watchmework

It seems like the only way you're going to be happy is to take the watch in to the RSC and have them take a look at it. I'd caution you though that you never know and you could get your watch back and something else could be wrong with it...not saying it will happen but I've seen where other members send their watch in for something small and it comes back with a scratched case or something like that. Best of luck in your decision

So. Very. True.

[77T]

Originally Posted by Spartans71

I hear you. I just feel that if I pay a lot for something, and it’s not in specs (although still very close) shouldn’t I get what I pay for?

I believe you are interpreting the -2/+2 accuracy target as some sort of guarantee.

It is the design parameter that they use to calibrate movements before leaving the factory. As some have explained, your watch is operating in a real world environment versus a factory or COSC lab.





Sent from my iPhone using Tapatalk Pro