3235 Movement accuracy

[JonTheKingJames]

Just wondering how accurate everyone’s 3235 movement is ? I picked up my SD43 two weeks ago and noticed when I wear it it’s dead even and accurate to the second of the atomic clock. When I am not wearing it work for a day it fails about 2 seconds. What about everyone else ?

[strafer_kid]

So far, mine keeping good time all round

[brandrea]

There’s quite an extensive thread here

https://www.rolexforums.com/showthre...highlight=3235

[Kevin of Larchmont]

Mine fluctuates by about a second a day depending on wear an position. I can keep it essentially dead accurate for months at a time simply by moving it around. By far the most accurate watch I own.

[Tanalasta]

+\~ 2 seconds is considered the norm.

Better fast than slow.

Mine is ~1 second at the moment. But will watch to ensure it’s not developing the issues that have plagued others


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[Rori]

Originally Posted by JonTheKingJames

Just wondering how accurate everyone’s 3235 movement is ? I picked up my SD43 two weeks ago and noticed when I wear it it’s dead even and accurate to the second of the atomic clock. When I am not wearing it work for a day it fails about 2 seconds. What about everyone else ?

Same with my SD43.


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[cascadez71]

126610

+.25 to +.75 s/d

usually + .5 s/d

only removed when distance running, otherwise worn 24/7

[Driver8]

My now departed SD43's 3235 was DEADLY ACCURATE (literally close-on +/-0 secs/day when worn daily)..... for about a year or so.

Then it sadly succumbed to the well documented 32xx slowing issue. But prior to that it had been the most accurate watch I'd ever owned. (And I've owned quite a lot!)

[Boaters]

Mine runs average of +1sec.

[MikeyV]

My DJ41 when not effected by the slowing issue, runs within a second or better each day, with positional resting. Usually more like a half second.

Mine has had the slowing problem, first a few months after purchase, and then again a few months after a trip to RSC. One day (literally) it went back to running near perfect and remains running very accurately some seven months later.

I am blessed.

[Choo Yao Chuen]

Within COSC specs.

[al503]

My 2018 SD43 had to go back to the RSC for regulation. After it came back, it's settled down a little less than -1 sec/day if I lay it down dial up. Resting crown up, it's probably closer to -2 or -3 per day.

Try laying it down with the dial up, if you aren't already.

[Laszlo]

All of mine well within spec. No problems to report.

[R.J.]

Originally Posted by JonTheKingJames

Just wondering how accurate everyone’s 3235 movement is ? I picked up my SD43 two weeks ago and noticed when I wear it it’s dead even and accurate to the second of the atomic clock. When I am not wearing it work for a day it fails about 2 seconds. What about everyone else ?

Mine also is spot on on the wrist but runs a second or two fast off the wrist

[Dirt]

Reports are that the movement is very accurate all things considered.
The only issue around it that we are aware of is that the long term timekeeping may be a random experience.
Of course, there's always the 5 year warranty to fall back onto.

[watchmavan]

Originally Posted by Choo Yao Chuen

Within COSC specs.

If just COSC specs then you're in trouble! Rolex hasn't sold at COSC for decades.


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[alphadweller]

My 2020 Sub41 is very accurate when worn, between +0.5 and +1.5 s/d. At rest, it loses time in any position, but not much when dial up. I don't wear it more than two days in a row, only at the weekend. I've actually worn it almost every weekend for the past 13 months, so far so good, touch wood.

However...

My 2017 SD43 was very accurate at first, between - 0.5 and - 1 s/d on average, then year after year it started to deviate. Now after 4 1/2 years it's at -6 s/d on average, tested in 5 positions, each of them throughout the 70h power reserve. I can't self regulate it because it loses significant time in every resting position. I have 7 months left on the warranty, but I won't be taking it to the RSC. I don't want to go through the tedious process of potentially taking the watch more than once. I'm waiting for Rolex to have a permanent fix for the premature wear of the seconds hand pivot, not a temporary solution like changing the axle and lubricating, only to have the problem appear again down the road. I have no time, energy nor inclination to go through that crap. I'd rather pay for a service out of warranty once they have a good solution than take it multiple times under warranty to have a botched job done. I'm not complaining about the whole situation, only stating my preference. I could also sell the watch and get rid of the problem, but I don't want to because I love the SD43, it's my favourite watch and I hope Rolex will eventually offer an acceptable solution. It's not ideal but I can live with - 6 s/d.

On the other hand...

My YM 116622 has the 3135 movement and it's been super accurate and faultless for the past 6 1/2 years. I prefer the behaviour of my 3135 over my 3235s. It's more stable and only gains a little bit of time, between +0.5 and +1.5 s/d. At rest it can be self regulated to 0 s/d. It's amazing.

So, to conclude...

According to my observation, my 3235s have a tendency to drag, a little bit at first within spec, then a bit more afterwards (-6 s/d in my experience) and potentially a lot more in some cases according to the many testimonies in this forum and elsewhere. Right now I don't really trust the 3235. It feels like a problem waiting to happen. I generally don't think about it and just enjoy the experience of wearing a nice watch. If my Sub41 and SD43 start to seriously lose time and there's no permanent solution, I'll get them "fixed" by the RSC and sell them.

[Tanalasta]

If it is running -6 seconds please send it to RSC
Especially under warranty

It may be due for service and you could be exacerbating wear or damage to parts if there are mechanical issues or dry lube. Not to mention you may be charged for said parts out of warranty.


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[amanbra]

I've found these movements to be ridiculously accurate sans the know amplitude issue if affected...

[Dirt]

Originally Posted by amanbra

I've found these movements to be ridiculously accurate sans the know amplitude issue if affected...

The new movements are not known to have amplitude in the normal range so one can't compare typical amplitude readings for them with those of conventional Lever escapements.

What is notable is the reduction from normal 32xx movement amplitudes in that it typically indicates the movement is afflicted with the 32xx lurgie.
Reduced amplitude is symptomatic of a problem just as it is with the 31xx movements just the reference point is a lower set of numbers.
The damning aspect is the increasing drop off in accuracy

[Wcdhtwn]

Mine was doing that too. It kept getting worse and finally took it to me AD for a trip to RSC Dallas a couple of weeks ago. I lost 5 minutes in as many days while wearing it… enigugh was enough.

I think you’re fine where you are, but keep an eye on it and if it starts losing a lot of time I’d send it in.

[CharlesN]

Originally Posted by JonTheKingJames

Just wondering how accurate everyone’s 3235 movement is ? I picked up my SD43 two weeks ago and noticed when I wear it it’s dead even and accurate to the second of the atomic clock. When I am not wearing it work for a day it fails about 2 seconds. What about everyone else ?

This thread might answer all your thoughts and questions on the 32xx movements.

https://www.rolexforums.com/showthread.php?t=786299

[padi56]

Originally Posted by watchmavan

If just COSC specs then you're in trouble! Rolex hasn't sold at COSC for decades.


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Not 100% true the bare uncased movements at still tested at the Swiss COSC to a AVERAGE -4+6 seconds to get the certification to have the words chronometer on the dial. Its only in the last few years this new precision -2+2 spec started, were Rolex further tests movement it its case in a controlled environment on a machine to this spec -2+2 spec.

[watchmavan]

Originally Posted by padi56

Not 100% true the bare uncased movements at still tested at the Swiss COSC to a AVERAGE -4+6 seconds to get the certification to have the words chronometer on the dial. Its only in the last few years this new precision -2+2 spec started, were Rolex further tests movement it its case in a controlled environment on a machine to this spec -2+2 spec.

Not 100% true. I wasnt referring to -2/+2. Back in the 50's Rolex started using Superlative Chronometre claiming "at least" COSC. It was also in slight jest.


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