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WWC · 28 July 2017, 10:23 AM

Just a week into wearing my white diver I've noticed something unusual which has not happened with my Daytona.

Although mechanical movements are known to be far from accurate, they should be gaining or losing at the same rate each day, right?

With my daytona it's consistently at +5 seconds per day, which is fine cause I know it's due for a service but I'm refusing to send it in as if now.

But this is what I have noticed with my diver.

Day 1: +3.5 sec
Day 2: +9 sec
Day 3: + 16 sec

Hm... are these figures alright? Or is it time for a service. It's still under warranty.

Thanks!

Manofsteelpt · 28 July 2017, 10:31 AM

Is that while wearing, or sitting?

singe89 · 28 July 2017, 10:41 AM

My ceramic offshore is a week old today and has run at +.25 seconds a day. Most of the others run -1 to +5.

WWC · 28 July 2017, 10:47 AM

Quote:

Originally Posted by Manofsteelpt

Is that while wearing, or sitting?

Good question Mike! It's actually sitting as I have not been wearing it since Tuesday and today is Friday.

Does it make any difference?

Another thing to note is whether I should lay my watch to rest crown up or down as it's gaining so much.

singe89 · 28 July 2017, 11:29 AM

They can speed up as they get closer to the end of the power reserve. I've noticed this a few times with my rotation. Fully wind it or wear it to test accuracy

breitlings · 28 July 2017, 11:42 AM

My ro lost about 30s per day even after service

WWC · 28 July 2017, 12:03 PM

Quote:

Originally Posted by singe89

They can speed up as they get closer to the end of the power reserve. I've noticed this a few times with my rotation. Fully wind it or wear it to test accuracy

Oh thanks! I'll try that then. How many turns is a full wind on the 3120? Wouldn't wanna over do it.

WWC · 28 July 2017, 12:04 PM

Quote:

Originally Posted by breitlings

My ro lost about 30s per day even after service

Oh man that's terrible!

PJ S · 28 July 2017, 01:20 PM

Quote:

Originally Posted by WWC

Oh thanks! I'll try that then. How many turns is a full wind on the 3120? Wouldn't wanna over do it.

https://www.rolexforums.com/showthread.php?t=513417

nursejm · 28 July 2017, 05:39 PM

Quote:

Originally Posted by breitlings

My ro lost about 30s per day even after service

It kills the fun of wearing a watch if it's accuracy is poor, isn't it?

Manofsteelpt · 28 July 2017, 11:04 PM

Quote:

Originally Posted by PJ S

https://www.rolexforums.com/showthread.php?t=513417

Post #12 is epic.

wach16 · 29 July 2017, 11:39 AM

Im certainly not a watchmaker but that seems a little off. That being said, I have had watches that "settled" into consistency after wearing it for a few weeks

jem7v · 30 July 2017, 01:29 AM

Quote:

Originally Posted by Manofsteelpt

Post #12 is epic.

It really is

.

SatansLittleHelper · 30 July 2017, 03:39 AM

Worn everyday, my AP Diver runs within a second a day. However, if I take it off it gets gradually less accurate as the days pass.
Just a characteristic of the 3120 it seems.

tyler1980 · 30 July 2017, 08:20 AM

i have found my 3120's vary in timing more than any other calibre i own depending on resting position.

If i store them crown up at night the variation over a 24 hour period is much less than if i wear it for 24 hours or if i wear it during the day and store at night in any other position besides crown up. They all keep time pretty spot on within a second or two a day that way

For me crown up storage works best as all my 3120's run a bit fast otherwise and that slows it down overnight

tyler1980 · 30 July 2017, 08:48 AM

Quote:

Originally Posted by Manofsteelpt

Post #12 is epic.

Quote:

Originally Posted by jem7v

It really is

.

that makes my top 10 list of epic responses. Just might have to add that quote to my signature.

alexlt730512 · 30 July 2017, 09:39 AM

i don't think AP focuses on the accuracy of the movement at all, but it is what it's

rossi46 · 31 July 2017, 02:31 AM

Since getting my 3120, it's run ~ +2sec/day. Not bad, considering AP doesn't claim COSC or in-house cert (like Rolex).

AK797 · 31 July 2017, 02:58 AM

Quote:

Originally Posted by alexlt730512

i don't think AP focuses on the accuracy of the movement at all, but it is what it's

I felt a little this way a few years ago when the Diver in particular seemed to have quite a lot of timing issues reported here, but the comfort was the quick regulation/service. Haven't seen nearly as many issues here in recent years so thought AP had tightened this up.

leisen · 31 July 2017, 10:40 PM

Caliber 3120, and AP mechanisms in general, are not as accuarate and consistent as Rolex calibers are.

Reloko · 7 August 2017, 12:25 PM

I have the same experience as tyler1980 post#15.

Watch storage seems critical as to accuracy. My observations are: crown up...slow, crown down....fast, dial up...least variance.

crown down...positive

Sent from my iPad using Tapatalk

jem7v · 7 August 2017, 01:02 PM

anyone ever notice if you let the chrono run a bit, then pause it to reset it, the second hand jumps like 1-2 seconds really quickly?

28 July 2017, 10:31 AM	#2
Manofsteelpt "TRF" Member Join Date: Feb 2011 Real Name: Mike Location: Buffalo, NY Posts: 3,971	Is that while wearing, or sitting? __________________ "Best to stay silent and have the world think you're a fool than to speak and remove all doubt." SMD

31 July 2017, 02:31 AM	#18
rossi46 "TRF" Member Join Date: May 2008 Real Name: Dan Location: CT, by a lake Watch: shopping Posts: 1,465	Since getting my 3120, it's run ~ +2sec/day. Not bad, considering AP doesn't claim COSC or in-house cert (like Rolex). __________________ A watch is about the entire package, not just its appearance. Any large watch company not making its own movement is not making a watch at all; they’re just playing dress-up. --The Watch Snob

28 July 2017, 10:23 AM	#1
WWC "TRF" Member Join Date: Sep 2010 Location: Home Posts: 1,434	Caliber 3120 accuracy Just a week into wearing my white diver I've noticed something unusual which has not happened with my Daytona. Although mechanical movements are known to be far from accurate, they should be gaining or losing at the same rate each day, right? With my daytona it's consistently at +5 seconds per day, which is fine cause I know it's due for a service but I'm refusing to send it in as if now. But this is what I have noticed with my diver. Day 1: +3.5 sec Day 2: +9 sec Day 3: + 16 sec Hm... are these figures alright? Or is it time for a service. It's still under warranty. Thanks! __________________ Royal Oak 15500ST Master Calendar METEORITE Q1552540 \| Luminor GMT PAM 00335 Aquanaut 5167A-001 \| Nautilus 5712/1A-001 Cosmograph DAYTONA 116520 \| DEEPSEA 126660 \| Explorer 214270 \| GMT Master II BLRO 16710 \| GMT Master II VTNR 126720 \| Submariner LV 16610 \| Sky-Dweller 326139 \| Prince Oysterdate 90630

28 July 2017, 10:41 AM	#3
singe89 "TRF" Member Join Date: Oct 2011 Real Name: Jim Location: Orange County, CA Watch: Rolex, AP & Patek Posts: 3,722	My ceramic offshore is a week old today and has run at +.25 seconds a day. Most of the others run -1 to +5.

28 July 2017, 11:29 AM	#5
singe89 "TRF" Member Join Date: Oct 2011 Real Name: Jim Location: Orange County, CA Watch: Rolex, AP & Patek Posts: 3,722	They can speed up as they get closer to the end of the power reserve. I've noticed this a few times with my rotation. Fully wind it or wear it to test accuracy

28 July 2017, 11:42 AM	#6
breitlings Banned Join Date: Jul 2014 Location: Bethesda Watch: Apple TV Posts: 5,744	My ro lost about 30s per day even after service

29 July 2017, 11:39 AM	#12
wach16 "TRF" Member Join Date: Jun 2008 Real Name: Chris Location: Boston, MA Watch: 228239, PAM00684 Posts: 2,116	Im certainly not a watchmaker but that seems a little off. That being said, I have had watches that "settled" into consistency after wearing it for a few weeks __________________ Rolex 228239 PAM00684

30 July 2017, 03:39 AM	#14
SatansLittleHelper "TRF" Member Join Date: Apr 2012 Real Name: Paul Location: UK Watch: Explorer 214270 Posts: 74	Worn everyday, my AP Diver runs within a second a day. However, if I take it off it gets gradually less accurate as the days pass. Just a characteristic of the 3120 it seems.

30 July 2017, 08:20 AM	#15
tyler1980 "TRF" Member Join Date: Apr 2015 Location: Houston Posts: 17,622	i have found my 3120's vary in timing more than any other calibre i own depending on resting position. If i store them crown up at night the variation over a 24 hour period is much less than if i wear it for 24 hours or if i wear it during the day and store at night in any other position besides crown up. They all keep time pretty spot on within a second or two a day that way For me crown up storage works best as all my 3120's run a bit fast otherwise and that slows it down overnight

30 July 2017, 09:39 AM	#17
alexlt730512 "TRF" Member Join Date: Apr 2011 Posts: 1,245	i don't think AP focuses on the accuracy of the movement at all, but it is what it's

31 July 2017, 10:40 PM	#20
leisen "TRF" Member Join Date: Nov 2013 Location: Spain Posts: 247	Caliber 3120, and AP mechanisms in general, are not as accuarate and consistent as Rolex calibers are.

7 August 2017, 12:25 PM	#21
Reloko "TRF" Member Join Date: Apr 2016 Location: Manila Posts: 102	I have the same experience as tyler1980 post#15. Watch storage seems critical as to accuracy. My observations are: crown up...slow, crown down....fast, dial up...least variance. crown down...positive Sent from my iPad using Tapatalk

7 August 2017, 01:02 PM	#22
jem7v Banned Join Date: Nov 2016 Location: Maryland Posts: 842	anyone ever notice if you let the chrono run a bit, then pause it to reset it, the second hand jumps like 1-2 seconds really quickly?

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