Best overnight position for accuracy

[bighaole]

Originally Posted by Annan

I don't think the regulation has been done properly. That seems like a significant gain to me. I have a newer (G series/3135 movement) DJ that was +6s/day when new. I had it regulated within the first month I had it and after three years it's currently +1s/day. It seems relatively sensitive to position and leaving it crown up overnight will lose 1 second making it spot on in the morning. I also had a new (Random series/3187 movement) EXPII (216570) that was +7s/day. I also had it regulated within the first month to +2s/day. Leaving it in various positions seemed to have little effect. I also have a new (Random series/3186 movement) GMTIIC that I've had for one month. It has not yet needed to be regulated. I wear it 24/7 and so far it's 0.5s/day. In short, proper regulation can work wonders. In my limited experience, accuracy and sensitivity to position does seem to be related to the age and more specifically, to the movement of the watch.

Annan, was regulation done under warranty or did you pay for it? Local watch maker or back to RSC?

Thanks.

[iclick]

Originally Posted by Chilgrove

After my Date was serviced in UK it was losing time so the RSC agreed to try again at no extra cost. Ok so now it gains.

Lot's of threads on accuracy lately. If you have access to a Timegrapher, do some position checks and write them down. If not, do trial-and-error tests as you've been doing only try all positions: dial up, dial down, crown up, crown down, six up, and six down. Don't trust the time displayed on your phone or computer but use GMT time (atomic clock).

It sounds like RSC overdid it to the extent that it runs fast in all positions. My Daytona is like that, also serviced by RSC, being +5 on my wrist and fast in all positions, so it can't be self-regulated. My older watches that get much more wrist time, a 1675 GMT and a Tudor chrono, are internally regulated close enough where I can self-regulate, and they both stay within a few seconds for the long term as long as I check periodically and position appropriately at night.

[rmfnla]

Originally Posted by iclick

Lot's of threads on accuracy lately.

Nothing "lately" about it, trust me...

[bayerische]

Originally Posted by rmfnla

Nothing "lately" about it, trust me...

[bayerische]

OP, buy an AP and then you'll get to worry about accuracy!

[Passionata]

Originally Posted by bayerische

OP, buy an AP and then you'll get to worry about accuracy!

You mean the 2121 movement or other?

[Andad]

As iclick said - Find someone with a timegrapher and check the fixed position that is best for the correction you need.

Check you watch first with low PR then wind it up to check for any difference when fully wound.

That will take about 5 minutes to do.

The newer movements don't have the same positional variations listed on the 'simple regulating' sheet that is flying around.

You will find that the PR affects the timing.

[T. Ferguson]

If your watch is a little speedy it is pretty easy to regulate it regardless of which model it is. When the watch gets to a minute fast, the best position is to rest it with the crown pulled all the way out for 60 seconds.

[Andad]

[Racerdj]

Originally Posted by T. Ferguson

If your watch is a little speedy it is pretty easy to regulate it regardless of which model it is. When the watch gets to a minute fast, the best position is to rest it with the crown pulled all the way out for 60 seconds.

That's a good one.

[iclick]

Originally Posted by T. Ferguson

If your watch is a little speedy it is pretty easy to regulate it regardless of which model it is. When the watch gets to a minute fast, the best position is to rest it with the crown pulled all the way out for 60 seconds.

...unless it's an older watch that doesn't hack.

[handsfull]

Positional variance is minimal with most of the newer Rolex models in my experience. My Pelagos (ETA 2824) is a different story, I can drop or add a second over night with positioning

[Eulogy]

I can get my 16610 to +1 laying flat with the face up or -1 with the crown up. I change the position every couple days and it stays pretty dead on.

[Chilgrove]

Currently doing an extended test with my Rolex Date to see what if any difference with overnight rest position. When I have some results I will let you all know.

[padi56]

Originally Posted by Chilgrove

I know this topic has been often discussed and I am sure it will continue to be so in the future. After my Date was serviced in UK it was losing time so the RSC agreed to try again at no extra cost. Ok so now it gains. Probably still within tolerance and I know a few seconds really should make no difference; I just want my Rolex to be as accurate as possible!
During the night I have been leaving it crown up as that allegedly is the best position to lose the most time. Well in my case that is the worst position as it gains 6 seconds per day. Leaving with crown to right (6 facing down) produced a gain of "only" about 4 seconds per day.
Does anyone have any other ideas about ways to make it slow down a wee bit?

Well dial flat up or dial down the balance staff runs on the ends of it's pivots very little or no added friction. So the balance wheel has a sightly higher amplitude so will make movement run very slightly faster. When watch is vertical crown up or down or the balance staff pivots runs on the sides of the balance pivot causing a tiny more added friction this slows the amplitude so will run very slightly slower. In wearing through the day these positions hopefully balance out if watch is regulated correctly.Now this don't always work with the 3 series or 4 series movements.

Gravity and temperature affects mechanical watches the most that's why they are tested in 5 different positions and temps.And in those different positions there will be very slight deviations in the timekeeping.But why worry over a few seconds either way remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times. Since a day has 86,400 seconds, even a watch that runs five minutes fast or slow each day has an accuracy of over 99.6 percent! A finer mechanical watch that gains or loses about six to nine seconds a day or about a minute a week has a breathtaking precision of over 99.091%. This is still very high precision, given the fact that the movement is constantly affected by the earth's gravity, metal expansion and contraction, temperature variations, subtle changes in lubrication and friction, shocks, and so on.

The fact is that no mechanical watch made will keep perfect time, very close yes but perfect no.The COSC spec is a average of -4 to +6 over 24 hours..So most Rolex are 99.994% accurate what more could anyone ask from a mechanical watch.Have you ever given your watch a full manual wind say 40 full crown turn clock wise.?Because when wearing with low activity you are not winding your watch enough that could have a effect on over all timekeeping.Plus if watch has been recently serviced that might take a week or more to settle down to your wearing habits but life's too short to worry over a second or so.

[Dyim]

^

[Chelseafan]

Originally Posted by bobernet

-4 to +6 averaged over a number of days and positions is COSC.

+5 is 2 minutes fast per month.

Next time you're in a meeting, compare everyone's watch to atomic time, and see how many are within 2 minutes.

If you only reset the time every two months when you need to jump the date, it will never be worse than 4 minutes fast. Being a little early is a good habit.

Pour a nice drink, relax, and enjoy your watch.

Good idea...next time I'm in a meeting I'll do that.

[eeh100773]

Is this a watch related thread or does involve Viagra in any way?

[locutus49]

I place mine doggy style. And it speeds it up just the right amount.

Originally Posted by busytimmy

Missionary.


Sent from my iPhone using Tapatalk

[locutus49]

After placing Hulk dial up every night (mine ran a couple secs a day slow), it runs as close to perfect as I can measure. Daytona is on time out of the box.

Originally Posted by padi56

Well dial flat up or dial down the balance staff runs on the ends of it's pivots very little or no added friction. So the balance wheel has a sightly higher amplitude so will make movement run very slightly faster. When watch is vertical crown up or down or the balance staff pivots runs on the sides of the balance pivot causing a tiny more added friction this slows the amplitude so will run very slightly slower. In wearing through the day these positions hopefully balance out if watch is regulated correctly.Now this don't always work with the 3 series or 4 series movements.

Gravity and temperature affects mechanical watches the most that's why they are tested in 5 different positions and temps.And in those different positions there will be very slight deviations in the timekeeping.But why worry over a few seconds either way remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times. Since a day has 86,400 seconds, even a watch that runs five minutes fast or slow each day has an accuracy of over 99.6 percent! A finer mechanical watch that gains or loses about six to nine seconds a day or about a minute a week has a breathtaking precision of over 99.091%. This is still very high precision, given the fact that the movement is constantly affected by the earth's gravity, metal expansion and contraction, temperature variations, subtle changes in lubrication and friction, shocks, and so on.

The fact is that no mechanical watch made will keep perfect time, very close yes but perfect no.The COSC spec is a average of -4 to +6 over 24 hours..So most Rolex are 99.994% accurate what more could anyone ask from a mechanical watch.Have you ever given your watch a full manual wind say 40 full crown turn clock wise.?Because when wearing with low activity you are not winding your watch enough that could have a effect on over all timekeeping.Plus if watch has been recently serviced that might take a week or more to settle down to your wearing habits but life's too short to worry over a second or so.

[Castor]

I've actually found that the more I just wear it the more accurate it becomes. Mine is currently at about +1.4 secs/day. I wonder if, when you wear it constantly, that the constant heart beat & movement & heat & subtle energy fields of your body helps to keep the parts limber & the oils circulating more efficiently & so the watch just falls naturally into your rhythm & thus making it more accurate?
A few months ago I went to the Philippines without my Explorer II. It was +1.6secs/day when I left & when I got back a month later it was +2.5secs/day. Now it's back to +1.4.

[Annan]

Originally Posted by bighaole

Annan, was regulation done under warranty or did you pay for it? Local watch maker or back to RSC?

Thanks.

Sorry.....had not seen your inquiry until just today. I paid $25 at a local watchmaker. He is a former AD (gave it up a few years ago) and has been Rolex certified for many years. The next closest AD with in shop services is 250 miles away. I felt $25 was worth not having to wait for RSC and besides, I trust this guy.

[sturgeon123456]

i wouldn't worry about 5 seconds. That's within spec but keep trying and let us know if any of the suggestions above work! Good luck!

[otisc]

Doesn't anyone just sleep with their watch on?

[T. Ferguson]

Originally Posted by otisc

Doesn't anyone just sleep with their watch on?

Some do. I don't wear a watch to bed, partly because I sleep in a tuxedo.

[Friar]

Originally Posted by Chilgrove

Righty oh, from tonight I am going to try face vertical with 12 uppermost. I know I am being daft worrying about a few seconds but then again I am just a daft Scotsman.

This slows my both my Explore and Explorer II down if they are running fast.

[subtona]

Tourbillon should solve the problem.

[subtona]

Originally Posted by otisc

Doesn't anyone just sleep with their watch on?

Always

[toomuchtalk]

Originally Posted by subtona

Tourbillon should solve the problem.

That it will!

[Daytona4130]

Originally Posted by Danex

Do the suggestions here still apply?:
Flat- go faster
Crown down - a little slower
Crown up - a bit more slower

I've found that this guide works perfectly