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ROLEXROLEXROLEXROLEXROLEXROLEX
ROLEXROLEXROLEXROLEXROLEXROLEX
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#1 |
"TRF" Member
Join Date: Sep 2022
Location: UK
Watch: 226570
Posts: 889
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Date change at midnight (ish)
Sorry for the stupid question but interested to know the answer to this one. I’m sure it’s been asked and discussed before but I’m not getting much of use out of the search function.
Other automatic watches I’ve had in the past show the date changing very gradually around midnight. Eg an old Tag I have, it’s evident the date wheel is moving from about 23.50 then it clicks through the last of the actual change at 00.02. My current model (Explorer II 226570 so 3285 movement) doesn’t move at all until about 00.06 then changes very suddenly. Is this something thats generally accepted and what causes it? eg a slight misalignment or design of the movement and how far out would be expected? I’ve had the watch a month and it’s only about 2 seconds off my iPhone over 30 days from initially setting it so surprised the date change is so much less precise. (Not that I desperately need to know the date in those 6 minutes but just interested!) |
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#2 |
"TRF" Member
Join Date: Mar 2012
Location: Brisbane
Watch: DSSD
Posts: 7,963
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It is my understanding that your Rolex is within the acceptable tolerance range for the change according to Rolex. It could be altered very easily by re-seting the position of the hands. To that, it will probably be different whenever it comes back from a service.
The Rolex has a quickset mechanism and that's the reason it flips instantly and also the reason why one can change the date at any time of the day without damaging the movement. There's no need to be concerned about changing the date during the critical time period on a modern Rolex because of the quickset mechanism. I can't speak to the TAG but some change progressively over a number of hours. Hense we need to be mindful of the critical range. |
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#3 | |
TRF Moderator & 2024 DATE-JUST41 Patron
Join Date: May 2007
Real Name: Larry
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Watch: GMT's
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Quote:
Rolex uses a cam and flat spring. When the cam reaches midnight, the spring is released and snaps the wheel to the next day instantly, as your Explorer is doing. The mechanism works with each 24 hour turn of the entire movement. The hands you see are a visual representation of time but are not physically attached to the date wheel. When a movement is assembled, the hands are the last thing put on and will be a few minutes either side of when the cam slaps the date spring.
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#4 |
"TRF" Member
Join Date: Sep 2022
Location: UK
Watch: 226570
Posts: 889
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Thanks - that’s a helpful summary and pointers. I’m sure I can find some diagrams, videos etc to learn a bit more as well - I had looked at my watch on Year’s Eve and noticed the date hadn’t changed just after midnight and then when I looked back a few minutes later, it had changed and I wondered when it did.
I happened to go to bed at midnight last night so made a point of watching it and was surprised how how different it was to other watches I own. |
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#5 | |
"TRF" Member
Join Date: Dec 2022
Location: US OF A
Posts: 187
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Quote:
That's funny because my date changes over at 0006 as well. Sent from my iPhone using Tapatalk |
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#6 |
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Join Date: Jun 2005
Real Name: Peter
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Don't worry when the date changes it can be a few minutes different either way. Dont forget its purely a mechanical process its not like switching a electronic switch. Rolex uses a cam system date change and sometimes they can get a bit dry from constant daily use, so it could take and extra minute or so for the jewel to slide off the cam, it does not indicate a problem with the watch.The most important thing that it changes by morning when you wake up,and you can see its changed, now thats far more important. As it proves you are still alive to live another day, hopefully in years to come to enjoy wearing your Rolex for many future decades .
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ICom Pro3 All posts are my own opinion and my opinion only. "The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever." Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again. www.mc0yad.club Second in command CEO and left handed watch winder ![]() |
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#7 |
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Join Date: Dec 2021
Location: España
Posts: 50
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La tolerancia de salto en la programación está entre -1 minuto a + 1 minuto, no perjudicando en el funcionamiento cualquier salto fuera de la tolerancia.
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#8 |
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Real Name: Ron
Location: Arizona, USA
Watch: 116233
Posts: 3,180
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All normal. Between my wife and I we have owned about 12+ Rolexes over the years. Only one, a DJ31 changed exactly at midnight.
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so many Rolexes.....so little time |
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#9 | |
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Join Date: Dec 2022
Location: Boston
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Quote:
They have designed this mechanism to be as precise as possible. It should happen exactly the same each day, with in seconds of the previous day. Keep in mind this is a purely mechanical mechanism where inaccuracies could and should be expected. I am a little confused. Were you worried that it happened 6 seconds after midnight? That’s very precise in the mechanical world. Expecting it to change each day according to you iPhone is a little out of range for many reasons. Your watch is either gaining or losing at least 2 seconds daily minimum. Your iPhone, should be exact. Every day. If you took a reading on Monday and it was 6 seconds slow, by next Monday it could be much slower or much quicker, according to you iPhone. |
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#10 |
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Join Date: Apr 2020
Location: Orange County
Posts: 1,777
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Mine does the same. No worries - it’s normal
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#11 |
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Join Date: Oct 2022
Location: SoCal
Watch: Explorer II
Posts: 75
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#12 |
"TRF" Member
Join Date: Nov 2010
Location: USA
Posts: 72
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My date just 3230 movement date change was usually 6 or 7 minutes past 12:00.
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#13 |
"TRF" Member
Join Date: Nov 2010
Location: USA
Posts: 72
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My datejust changed the date instantly 6 or 7 minutes
after 12:00 with a little click sound. |
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#14 | |
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Real Name: Brian (TBone)
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Quote:
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#15 | |
2024 ROLEX DATEJUST41 Pledge Member
Join Date: Feb 2010
Real Name: Thomas
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Quote:
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#16 |
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Join Date: Dec 2021
Location: España
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Precision
https://youtu.be/-q11QakS6KE |
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#17 |
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Join Date: Dec 2021
Location: España
Posts: 50
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Un clásico
https://youtu.be/qogCoOIDM7A |
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#18 |
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Join Date: Dec 2021
Location: España
Posts: 50
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Explorer
https://youtu.be/4TKbnQhIlUM |
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#19 |
2024 ROLEX DATEJUST41 Pledge Member
Join Date: Feb 2010
Real Name: Thomas
Location: YVR
Watch: 116233/79190
Posts: 49,276
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The most accurate was 1st one on the precision..
but all 3 are not cased..which could make a difference... Cool tho....... ![]()
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#20 | |
2024 Pledge Member
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Real Name: Ken
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Quote:
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#21 |
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Join Date: Dec 2022
Location: germany
Watch: Rolex Explorer II
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great to read through :) thanks
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#22 |
"TRF" Member
Join Date: Feb 2020
Location: SoCal
Posts: 106
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My 1982 day date changes 1 minute early. My 2022 Datejust changes 4 minutes past midnight
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#23 |
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Join Date: Jun 2022
Location: UK/US
Watch: DSSD 126660
Posts: 34
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Yep. My 2022 DSSD slaps onto the next day at exactly 00:04:55 every time. Usually though I'm either too asleep, too busy drinking, or too busy not looking to notice!
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#24 |
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Join Date: Feb 2009
Real Name: Russ
Location: Southern NJ
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I can hear my date change at 5 minutes past midnight. If I'm still awake.
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#25 | |
"TRF" Member
Join Date: Sep 2022
Location: UK
Watch: 226570
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Quote:
Thank you all for the replies. |
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#26 | |
"TRF" Member
Join Date: Feb 2009
Real Name: Greg
Location: USA
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Quote:
Date change alignment has to do with how accurate the watchmaker chose to be (or was able to be) on the day he or she mounted the hands. It has nothing about the movement quality. Getting the hands to align exactly at midnight at date change is absolutely possible (given an instantaneous date change system), however, easier to do on some calibers than others. Anything outside of +/- 2mins of midnight is just laziness or ineptitude on the part of the watchmaker that set the hands. ![]()
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#27 |
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Join Date: Jun 2022
Location: UWS
Posts: 10
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Why is it that when I manually wind the minutes hand, the date changes at midnight. But when it runs mechanically, the date changes minutes after midnight?
Is there a way without having the Rolex watchmaker open my GMT II, for me to adjust by (hand)? |
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#28 |
"TRF" Member
Join Date: Jun 2011
Location: GMT -8
Posts: 343
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I’ve read it’s a function of where the watchmaker sets it. It’s an alignment thing. They attempt to get it right at midnight, but as long as it’s close it passes quality.
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#29 | |
2024 ROLEX DATEJUST41 Pledge Member
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Quote:
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#30 |
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