Always plus, never minus.

[bp1000]

All my Daytona's are the same, some are +1 and some are +2 and they stay like that every single day.

Positioning makes hardly any difference; they are incredible movements.

Esp compared to the speedmaster 1861 which is very sensitive to position. The 3861 is exactly the same as Daytona. Very consistent, very accurate.

[TswaneNguni]

Originally Posted by bp1000

All my Daytona's are the same, some are +1 and some are +2 and they stay like that every single day.

Positioning makes hardly any difference; they are incredible movements.

Esp compared to the speedmaster 1861 which is very sensitive to position. The 3861 is exactly the same as Daytona. Very consistent, very accurate.

True,4130 movement is the least position dependent of all brand watches I own and have owned .

[Smobews]

My SD43 is consistently 20 seconds slow per month. Once a month I set my watch 10 seconds fast. I am then at most within 10 seconds of atomic clock time all month. That is outrageous accuracy for a mechanical movement.

It came out of the Rolex factory very well adjusted. The delta between face up and crown down (largest deviation) is 4 SPD.

I suggest checking it once a month. If you are within a minute a month, you are within Rolex specs. If it is significantly more than that, get it checked out and regulated.

[bmb15]

Originally Posted by Smobews

My SD43 is consistently 20 seconds slow per month.

Congratulations, consistently 20 s/month is perfect.

[Smobews]

Originally Posted by bmb15

Congratulations, consistently 20 s/month is perfect.

yeah, my wear pattern and resting position doesn't change much day to day.

[Brian Page]

Originally Posted by Simon_jrees

Although it's within the 2 seconds a day my Daytona since recent service is always +2 and it's every day... seriously it never falls back, it it normal to always have + and no - ?

Perfect in my opinion

[Smobews]

get yourself a $200 timegrapher on Amazon and see for yourself what the slowest position is for your watch. Rest it in that position at night.

[bmb15]

Originally Posted by Smobews

get yourself a $200 timegrapher on Amazon and see for yourself what the slowest position is for your watch. Rest it in that position at night.

Yes, one can only make statements if one has some reliable data. A timegrapher is also very useful to see the difference before/after a service of the watch caliber ... That was my way to spot that the initial 32xx calibers had severe problems.

[gentb]

My Daytona has always been +! but it doesn't bother me at all.

[258Pearl]

Yes. Perfectly normal. As stated above, depends on how stored and how worn.

Better to be a little fast, since it's easier to hack to slow down.

[Smobews]

A buddy of mine is an engineer, and spent most of his day working on a computer. His sub was face up on his wrist most of the day. His watch was consistently +2.5 spd. He retired and isn't constantly on the computer anymore. His watch is now consistently +1.5 spd.

[doramas]

I don't see any merit in it. It's normal, and it could be even more accurate. My Datejust has a movement 3135 with almost 32 years is in -0.26666 a day, or -8 seconds a month

[bmb15]

Originally Posted by doramas

I don't see any merit in it. It's normal, and it could be even more accurate. My Datejust has a movement 3135 with almost 32 years is in -0.26666 a day, or -8 seconds a month

Great, just another confirmation that the 3135 movement is better than the 32xx series

[bmb15]

Originally Posted by Simon_jrees

Although it's within the 2 seconds a day my Daytona since recent service is always +2 and it's every day... seriously it never falls back, it it normal to always have + and no - ?

Back to the original question from the OP
(a) it looks like a very good service
(b) every day +2 means that it's well regulated
(c) a regulation (after a service) of a few + s/d confirms what I observe too

[Oystersteel92]

I prefer a slight positive bias and every Rolex I've dealt with has been that way. My Daytona-C was last hacked to WWVB on 9/11 and in the 37 days since is now 13 seconds ahead, or .35 seconds per day. I'm pretty darn happy with that.

That level of accuracy is as good as most non-high-end quartz movements. I have a Seiko Solar diver that gains .33 seconds per day no matter how much or how little I wear it. Warm or cool, doesn't seem to matter.

I have a Breitling Chronomat, the first one released with the B1 movement and it always lost time, even after two services (one under warranty). Drove me to Rolex it did.

[Aterth]

Maybe you should sell it.

[Simon_jrees]

Originally Posted by Aterth

Maybe you should sell it.

Not gonna happen

[HogwldFLTR]

Originally Posted by Simon_jrees

Although it's within the 2 seconds a day my Daytona since recent service is always +2 and it's every day... seriously it never falls back, it it normal to always have + and no - ?

It's behaving well; consistency is the best results!!! That amounts to a minute per month variance!!!

[Smobews]

Rolex is engineered for consistent accuracy. You’re paying the premium for it. +/- 10s a day is out of the question. You have a five year warranty that covers adjustments to within +/- 1 minute a month. If your ok with worse then that type of performance out of your mechanical watch, buy a Tag and save some money.