Rolex Precision -2/+2

[Oaker1]

At what point outside of the -2/+2 per day (COSC plus Rolex certification) would you send your relatively new (28 months old) Rolex back into RSC for regulating?

[greentimgreen]

+/- 3sec per day


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[padi56]

Originally Posted by greentimgreen

+/- 3sec per day


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Surely you must be joking.

[Seibei]

Outside plus minus 4.

[georgekart]

Honestly depends. At +3, I wouldn't bother, but at -3 I probably would. I say -3/+5 is where I wouldn't bother. Then if it's in between -3/+5 but not -2/+2, I'd send it in right before the warranty ends. AFAIK they get serviced, when they come in for regulation at RSC, so seems like a good opportunity to sneak service into it at 5 year mark.

[padi56]

Originally Posted by georgekart

Honestly depends. At +3, I wouldn't bother, but at -3 I probably would. I say -3/+5 is where I wouldn't bother. Then if it's in between -3/+5 but not -2/+2, I'd send it in right before the warranty ends. AFAIK they get serviced, when they come in for regulation at RSC, so seems like a good opportunity to sneak service into it at 5 year mark.

If needed mostly all they would do is regulate it nothing more,and just because its been tested on a machine to this -2+2 spec dont always mean it will perform exactly the same every day on the wrist.On the wrist there are many many variables, like mainspring power-reserve,gravity,slight deviations in temperature,subtle changes in lubrication and friction, shocks, and so on.After all there are 86400 second in a day and for any mechanical movement to run even to the COSC -4+6 seconds daily average is a mechanical marvel.

[Andad]

What would you recommend Peter?

[Zakalwe]

It partly depends how often you wear it.

My watches each last a maximum of about two weeks in rotation before I fancy a change, so several seconds per day wouldn’t bother me in the slightest. If I only ever wore one watch I’d ideally want it as accurate as possible, but in that case it’d be a G-Shock.

Bear in mind the majority of people who own mechanical watches manage to get by with accuracy tolerances much looser than +-2sec. It will bother you as much as you allow it to bother you.

[Mr Perfect]

Originally Posted by georgekart

AFAIK they get serviced, when they come in for regulation at RSC, so seems like a good opportunity to sneak service into it at 5 year mark.

Why would RSC service a watch that requires a regulation?

[georgekart]

Originally Posted by Mr Perfect

Why would RSC service a watch that requires a regulation?

That's what I read they tend to do with watches when they come in for regulation. Why they do it is another matter. But all anecdotal evidence I saw seems to suggest they will service it. Maybe because they believe that if watch they adjusted at factory isn't running as expected, it's lubrication issue. I don't know why.

[Brew]

I always wonder how far off my watches will get before I even notice. I suspect somewhere around 5 mins late/early for a meeting may get my attention.

[1William]

I think it depends on how much I wear the watch and what the variation is. I would have my watch guy put it on the machine and determine if there is an issue. If there is a larger issue then off it goes under warranty. If only seconds off in timing, I would just go on with it as it is not a big deal to me.

[Annan]

It's a personal choice and depends on your tolerance. Some insist that their Rolex be exactly spot on while others have such little regard for accuracy I wonder why they wear a watch at all.

If it gets beyond COSC of -4/+6 I have it regulated. Sent my DJ to RSC when it hit -6s/day and it is now consistently well within -2/+2. In my case there was a movement issue that was fixed under warranty.

[Justingtr]

My buddy has a Seiko that supposedly has -35 to +45 range. That would drive me nuts. But if my watch were outside COSC I'd send it in. That -2/+2 seconds is under perfect circumstances, which we don't live in

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[DHPSU]

I will probably send mine in for regulation or servicing right before the warranty ends. As you can see below, I have been in the 3’s, but it’s consistent, so I’m sure nothing is wrong with it. My Tudor North Flag, Omega Seamaster Pro, and my 60’s era oyster perpetual all perform better.



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[padi56]

Originally Posted by directioneng

What would you recommend Peter?

To stop worrying and fretting over a couple of seconds out of 86400 in a day and enjoy just wearing there watches. On the daily wearing on the wrist most could vary a second or so almost daily its no big deal. Dont think anyone life today is run to the exact second, if it does then I feel truly sorry for them. Life is to short to worry and fret over a few seconds either way, even on the new mostly marketing -2+2 average daily spec.

[Brny11]

Originally Posted by padi56

If needed mostly all they would do is regulate it nothing more,and just because its been tested on a machine to this -2+2 spec dont always mean it will perform exactly the same every day on the wrist.On the wrist there are many many variables, like mainspring power-reserve,gravity,slight deviations in temperature,subtle changes in lubrication and friction, shocks, and so on.After all there are 86400 second in a day and for any mechanical movement to run even to the COSC -4+6 seconds daily average is a mechanical marvel.

Agreed.

To OP they measure in multiple positions. Can theoretically run +6 dial up and -4 crown down which is +2 and in spec. Though if you always keep it dial up it would appear out of spec. I would only send in if the time dramatically changes. If let’s say for 6 months it keeps +4 a day than all of a sudden starts running much faster or slower with no change in wear habits and is fully wound, that is a potential indication of something wrong. If it holds time consistently every day, no reason for anyone to open case back IMO. If it bothers you given any accuracy, send it off. No reason to be unhappy with your watch, even if we all find you crazy!


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[Oaker1]

Originally Posted by Brny11

Agreed.

To OP they measure in multiple positions. Can theoretically run +6 dial up and -4 crown down which is +2 and in spec. Though if you always keep it dial up it would appear out of spec. I would only send in if the time dramatically changes. If let’s say for 6 months it keeps +4 a day than all of a sudden starts running much faster or slower with no change in wear habits and is fully wound, that is a potential indication of something wrong. If it holds time consistently every day, no reason for anyone to open case back IMO. If it bothers you given any accuracy, send it off. No reason to be unhappy with your watch, even if we all find you crazy!


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Not crazy, but my OCD does kick in a fair bit. It seems to be running at -4 spd, and is annoying me. Think I would be happier with +4spd. However, it is consistent with no evidence of any swings either way, so will leave as is for a while.

Some good advice on this forum from members, once again.. Cheers

[214270Explorer]

Stop worrying about a few seconds and just enjoy the watch.

Anxiety over a few seconds could lead to a heart attack if you let it.

I have a vintage watch that is more than out of COSC spec and I truthfully do not notice.

[Mr Perfect]

Originally Posted by Oaker1

Not crazy, but my OCD does kick in a fair bit. It seems to be running at -4 spd, and is annoying me. Think I would be happier with +4spd. However, it is consistent with no evidence of any swings either way, so will leave as is for a while.

Some good advice on this forum from members, once again.. Cheers

OCD can be very serious, consider seeing your Doctor.

[T.Mas]

Originally Posted by padi56

If needed mostly all they would do is regulate it nothing more,and just because its been tested on a machine to this -2+2 spec dont always mean it will perform exactly the same every day on the wrist.On the wrist there are many many variables, like mainspring power-reserve,gravity,slight deviations in temperature,subtle changes in lubrication and friction, shocks, and so on.After all there are 86400 second in a day and for any mechanical movement to run even to the COSC -4+6 seconds daily average is a mechanical marvel.

Bwahh, this is a perfect answer! Reflects my previous comments in another thread. It is a marvel! Truly amazing. If you want more accuracy in an infinitely less cool watch, buy something quartz at your grocery store. If you want a marvel of science, buy a Rolex.

[No SUBctitute]

Originally Posted by padi56

After all there are 86400 second in a day and for any mechanical movement to run even to the COSC -4+6 seconds daily average is a mechanical marvel.

I wouldn't characterize an $8,000 watch operating within COSC as a "mechanical marvel." Based on anecdotal evidence read here, it seems the vast majority of new Rolexes operate within +/-2, so operating at +6 doesn't seem that great. And I can buy a sub-$1,000 ETA movement watch that can be easily regulated to operate with COSC. For an $8,000 watch I expect more.

[SearChart]

I don't know if I would even notice if it were running out of spec.

[GradyPhilpott]

Regardez vous.

[T.Mas]

Originally Posted by No SUBctitute

I wouldn't characterize an $8,000 watch operating within COSC as a "mechanical marvel." Based on anecdotal evidence read here, it seems the vast majority of new Rolexes operate within +/-2, so operating at +6 doesn't seem that great. And I can buy a sub-$1,000 ETA movement watch that can be easily regulated to operate with COSC. For an $8,000 watch I expect more.

If accuracy is your goal, buy a $19.99 quartz that loses 1 second every 6 months. Please don’t forget though that the same mechanical watch, not the same model or type of watch, I mean the exact same watch, will perform differently on 2 different people’s wrists. Usage, movement and environmental differences greatly affect performance, no matter what price range.

[Jona]

For the same watch, my timing machine and my AD's yield slightly different results. Neither of those readings matches real world conditions when wearing the watch. And depending on my activities the timing varies a bit. I generally accept COSC as ok for me, and within rotation periods my needs are satisfied. I DO have a GS 9F which is +/- 5 sec/year. That one is fun to check every so often!

[JasChCh]

I sent my 2018 DeepSea back...twice!!

After the first 3 months or so of wearing it daily it was gradually losing more time each day. It started around minus 3 spd, and ended up around 7 spd slow. Largely regardless of overnight positioning, which made only a very small difference to the overall loss of time.

It was away for a month, then arrived back and I was initially very happy because it was now gaining around 2 to 3 spd. Unfortunately it did not stay there and once again gradually began to get worse, this time gaining time until it was gaining between 6 & 7 seconds per day - once again, largely independent of overnight position.

So, back it went a second time - got it back a month ago and it's within the plus 2/minus 2 range but more importantly it's staying there, not drifting ever further away like it did previously.

I think there was a lubrication problem with a small number of the new movements (3235 here), which could have explained the problems my watch had, but I will never know.

[pkincy]

Originally Posted by T.Mas

If accuracy is your goal, buy a $19.99 quartz that loses 1 second every 6 months. Please don’t forget though that the same mechanical watch, not the same model or type of watch, I mean the exact same watch, will perform differently on 2 different people’s wrists. Usage, movement and environmental differences greatly affect performance, no matter what price range.

Please point me to a $20 watch that is +/- 2 sec/year! The only watch that is specified at that is the Citizen 0100 movement and I think that will be available in a month or two at $16,800 in pm on strap or $7400 in titanium on titanium. Those that have +/- 5 seconds/year tend to be in the $3,000-4,000 range. Most quartz watches are in the +/- 6-9 sec/day or about +/- an hour/year. It takes thermo compensation to get in the +/- 10 sec/year range or better. Your Rolex is much more accurate than a normal non thermocompensated quartz watch.

Here is an interesting treatise on accuracy and stability of several normal quartz watches. https://tf.nist.gov/general/pdf/2276.pdf And do note that this test was done under rather stable temperatures that serves to keep the quartz oscillating at a relatively stable frequency, so these results are better than a normal quartz watch worn daily on the wrist in and out of doors.

[longimanus88]

Originally Posted by pkincy

Please point me to a $20 watch that is +/- 2 sec/year! The only watch that is specified at that is the Citizen 0100 movement and I think that will be available in a month or two at $16,800 in pm on strap or $7400 in titanium on titanium. Those that have +/- 5 seconds/year tend to be in the $3,000-4,000 range. Most quartz watches are in the +/- 6-9 sec/day or about +/- an hour/year. It takes thermo compensation to get in the +/- 10 sec/year range or better. Your Rolex is much more accurate than a normal non thermocompensated quartz watch.

Here is an interesting treatise on accuracy and stability of several normal quartz watches. https://tf.nist.gov/general/pdf/2276.pdf

Isn't any radio-controlled watch (like a G-shock) supposed to be within those specs? I use my G-shock to correct the date (and time) every 2 months.

https://www.casio-europe.com/euro/pr...radio-watches/

[Jostack]

Regulate it yourself. All you need is a small rubber ball, needle nose pliers and whiskey.