Tudor GMT Date Wheel Issue Complete Guide

Tudor Black Bay GMT 79830RB

Tudor GMT Date wheel issue

In 2018, Tudor released the Heritage Black Bay GMT reference 79830RB. This watch was an important release for the brand as it is the first GMT watch for Tudor, but most importantly, it is inspired by the heritage of its bigger brother Rolex’s GMT watches. And it’s safe to say that Rolex makes what is possibly the most recognized GMT watches in the world.

As you can expect, the Tudor GMT 79830RB became an instant success after its launch. This model was on a waiting list around the world, and getting one could even take a year, maybe more. Just like with Rolex, the demand for this model just seemed to be too high.

But the life of the Tudor GMT 79830RB has not only been a smooth one. Already since the beginning of its production, the heritage Black Bay GMT has been haunted by a date wheel issue.

If you look online, much of what is being shared related to this watch is about the date wheel issue. But what is it really, and what can you do about it? In this article, we will go into detail about the Tudor GMT date wheel issue.

Photo via Rolexforums @chuey38

What is the Tudor date wheel issue?

The Tudor date wheel issue is something that seems to affect a number of heritage Black Bay GMT owners. The issue is that sometimes, the date advances earlier than midnight, sometimes the date advances 1.5 days or 0.5 days, which means it is stuck halfway in the date window.

Tudor has other watches featuring a date function, and there have been no reports that the date wheel gets stuck between two dates. As such, the movement, which is exclusive to the Black Bay GMT seems to be what is causing it.

The movement used in the Heritage Black Bay GMT is the MT5652. MT stands for Manufacture Tudor and tells us that it is an in-house movement. At the launch of the GMT, this was a brand new movement, developed specifically for the watch.

Tudor Heritage Black Bay GMT 79830RB New 2020

This also means that the movement is not tried and true. Although, of course, the movement has undergone countless tests during its development stages. And speaking about the development stages, the deliveries of the Tudor GMT was actually postponed and delayed from the Tudor factory, which is rumored to have been caused by the date wheel issue. This is even before the watch was available to the general public.

Tudor is just like Rolex, privately owned. Furthermore, it is just as secretive as its bigger brother in communicating information to the public. Of course, Tudor has not commented on or recognized the date wheel issue publicly. Even though, it seems that it is a somewhat widespread issue. But again, we want to emphasize that we have no idea about how many people experience a date wheel issue on their GMT. Then, of course, you can always debate how big of an issue it really is, but that is a topic for a different time. The majority of Tudor GMT owners likely do not complain about the date wheel issue if it appears. Others, however, take it to social media, and the reason the topic of the Tudor date wheel issue has gotten so much traction in recent times is that it’s not just one or two people reporting about it.

tudor gmt 79830rb

The delayed release of the Tudor GMT

The Tudor Heritage Black Bay GMT was released at Baselworld 2018. But the watch didn’t seem to reach authorized Tudor retailers until late summer/autumn of 2019. Whilst there is some time between Basel and the actual release, the GMT had documented delay according to dealers. This is said to have been caused by the date wheel issue that Tudor identified and then tried to resolve.

Furthermore, authorized Tudor retailers have reported that at the beginning of its production, Tudor temporarily halted the production as a result of the date wheel issue. This further caused delays in the deliveries of the Black Bay GMT. This is partly the reason for the waiting list for this model, as the production of the model hasn’t been up to full speed. But now, in recent times, almost one year after the release of the model, it seems that Tudor has finally caught up with production and more and more people are able to get it.

Tudor Black Bay GMT 79830RB

What is causing the Tudor GMT date wheel issue?

A common question we get is what is causing the date wheel issue.

We have gotten different information and responses, so it is difficult to say exactly what is causing it, but one issue that is mentioned is related to a teething issue on the movement. Another issue that has been discussed is the oil used in the movement. Another authorized Tudor retailer has said that the issue is related to a specific part of the movement which was faulty and needed to be replaced.

Only Tudor knows in detail what the issue that is causing the date wheel issue is.

But what is safe to say is that developing a new mechanical movement is no easy feat. A mechanical movement consists of hundreds of parts, and so getting it perfect is extremely difficult. It’s not uncommon that watchmakers identify flaws with their movements that they need to fix later on. It’s just that the date wheel issue is so noticeable.

Via Watchuseek @paulie8777

Is the Tudor GMT date issue fixed?

There are mixed answers to this question. According to many authorized Tudor retailers, the date wheel issue is in fact resolved. But if you look at social media, you can see that some people who have bought a GMT recently have experienced the date wheel issue.

And the fact is that only Tudor knows the answer to that question. Most likely, Tudor has identified the issue and done something about it. It may be slightly improved but as cases seem to be appearing still, it seems it is not completely resolved just yet.

What should you do if you have the Tudor date wheel issue?

There are several things you can do if you notice that your Tudor GMT watch has the date wheel issue.

1. Leave it

One thing you can do (and that a lot of people do) is to leave it as it is and hope that it will get better. We all react to things in different ways, and some people will barely raise an eyebrow if they notice the date has jumped a bit too far or a bit short and gotten ”stuck” in the middle

2. Wait and see if it gets better

It all depends on what your attitude is towards this issue. Do you not care that much or are you a person who will take it to social media to complain and let out your frustration? If you are the first, you can simply wait and see if the date wheel issue gets better and only was something temporary. You can also wind the date when and if it gets stuck to get it into position again. If it proves not the be temporary, you can think about if it bothers you and if you want to have it fixed.

Tudor Black Bay GMT 79830RB

3. Take it to a service center

The date wheel issue with the Tudor GMT will be covered under its warranty. Since the watch didn’t start hitting the shelves until the late summer of 2018, it means that the vast majority of them will have a 3.5-year warranty due to the extended warranty that Tudor announced in 2020.

Tudor will fix this issue free of charge under the warranty if you complain about it and take it to a service center. In most cases, the watch will have to be sent back to Tudor in Switzerland, in others, it may be fixed at the service center. Bear in mind that it normally takes about 6 weeks to get it back, but can take longer. We have been informed that many GMTs that have the date wheel issue get the movement replaced to a brand new one.

The issue is that we have heard many reports of people who have handed in their Tudor GMT to have the date wheel issue resolved, only to find that it gets the date wheel issue again, shortly thereafter. However, for the majority of people, the issue seems to be resolved when it gets back from the service.

If you have had the date wheel issue, it may be a good idea to have it fixed whilst you still have the warranty left. The date wheel issue is covered under the Tudor warranty, so it will be resolved free of charge.

Tudor Black Bay GMT 79830RB


Should the date wheel issue stop you from getting the GMT? We think not. It seems like some people decide not to get the Tudor GMT because of the reported date wheel issue, but we think you shouldn’t let it stop you if it speaks to you. Bear in mind that the majority of watches seem to have no issues at all. If the issue appears, you can simply wind the date so it gets into position again. If you do indeed get the issue and it bothers you a lot, it will be resolved under warranty.

It’s a stunning watch that offers great value for money, with its well-finished case and dial, its vintage-inspired design, and in-house caliber. It’s just a great watch.

Let us know in the comment section below! Do you have a Tudor GMT and have you had the date wheel issue? Is this a major dealbreaker for you?

98 thoughts on “Tudor GMT Date Wheel Issue Complete Guide

  1. Not worth the trouble of going back and fourth to the AD.
    Placed the order March 2019, 90 days after i was told i am second in line to receive the watch, meanwhile, i noticed all the social media treads and reviews, also noticed all the advertisements for the sale of this watch. Cancelled my order and decided not to buy a watch that has not been getting good reviews.
    I will never buy a watch that has no history of accuracy and good operation. bet Tudor will discontinue the model, and many owners will be upset !

    1. Thank you for sharing your experience and thoughts!

      Kind regards,
      Millenary Watches

      1. So I got my GMT back from Tudor after about 6 weeks. No info was given as to what was done to the watch, but fwiw it is working as advertised for now.
        I persisted about the warranty extension and it was finally confirmed by the AD here in Germany that my watch too is covered by the additional 18 months of warranty coverage, so should the problem arise again within a similar time frame as the first time, I´d still be covered. I would seriously have to reconsider my purchase though if it did happen again, because as I said before, reliability is a must for a true tool watch.


        1. Thanks for sharing your thoughts and experience, ralf!

          Kind regards,
          Millenary Watches

  2. Hi all, I need to report another instance of this issue, in my case the BB GMT was purchased in July 2020, and the date wheel issue appeared by mid-November 2020.
    I have now left the watch in the dealer, who have sent it over to the Rolex official technical service.
    Honestly speaking, I am more than a little concerned by the number of cases reported herein, where the issue reappears. This clearly means that Tudor does not have the proboem under control, so there is no way of making sure our GMTs have been properly fixed.

    1. Thank you for sharing your experience!

      Kind regards,
      Millenary Watches

  3. I was going to purchase this until I heard of the issue and went with the black bay which was my second choice, I expected more from Tudor. Maybe in the future, but I will not buy a watch with known issues at this or any price.

    1. Thank you for sharing your thoughts!

      Kind regards,
      Millenary Watches

  4. Hi All,
    Brought my Tudor GMT in Aug 2018 and noticed the date issues in early 2020 ( as posted by others above ). Sent it back to AD for repair and got it back last week after five months ( partly due to covid ). Now, keep a close watch on my watch. Thks.

    1. Thanks for sharing!

      Kind regards,
      Millenary Watches

  5. Hi. I just recently bought a Tudor GMT. U noticed at around 10/11pm, the date is already in between. It is already transioning to the next day. Is that considered a date wheel issue or it is expected as it is? Im thinking the date should only move when the clock strikes 12mn

    1. Hi,
      It is not really a date wheel issue. The goal is to have it at 12 precise, but the nature of fine mechanical movements can affect this.

      Kind regards,
      Millenary Watches

  6. I bought a new one in 2020 and after some months it developed the issue and now everything is shutdown for Covid.
    I don’t think we can sincerely call the problem gone until a year has passed with no issues as the issue doesn’t appear immediately.
    I have a thirty year old Rolex I owned since new that has never missed a beat. If it weren’t for the waiting lists I would have bought another instead of the Second Division.

    1. Thank you for sharing your thoughts and experience!

      Kind regards,
      Millenary Watches

  7. Hi,
    I purchase my Tudor GMT in August 2018, one year later 2019 I had the date stacking between 11 and 12., Sent to AD for repair, came in January, in March the 8 dot fall off, again to repair. In May I got it back and in August the date was between the day 12 and 18 jumping 2 days at once.. I got it back 2 weeks ago and looks like working fine. Let’s see.

    1. Hi,
      Thank you for sharing your experience!

      Kind regards,
      Millenary Watches

  8. Bought my first one in 2019 and within a couple months the movement bricked. Winding felt like rocks and the movement wouldn’t start up again unless it was shook and then the seconds hand would stop intermittently. Took back to my AD who sent it to the service center (Dallas I think). after about 3 months i was told the service center didnt have an update and actually couldnt locate the watch. my AD pulled in their local Tudor rep and she had a new one sent out to me immediately. I’ve had this new one for just about a year now and the movement feels amazing. I have noticed on 2 occasions, one just the other day, where the date skipped a day. Woke up on January 31 to see a 1 sitting squarely within the date window. The first time it happened I wasnt sure it wasnt my fault (setting it wrong) but this time I know for certain it skipped a date. thought about selling it, or taking back to be serviced… really love the watch. after reading this i think i’m going to see if it improves over the next year or not.

    1. Hi Eric,
      Thank you for sharing your experience!

      Kind regards,
      Millenary Watches

  9. I bought Tudor BB GMT in Nov-2019, realizing that it has date problem since few months back. The main issue is due to the power it has. If Am not using it for a day, then it will have low spring capacity then the date will jump for 2 days at once. Happened around 12 am to 6 am. Then I have to rotate the date 1 month forward to go back to the jumped date. Then using it actively for days. Usually the problem fixed, but this time, I still have to manually adjust the minute hand (double pull) between 12.10 am to 12.15 am. Then with just slight movement on the crown, the date change normally. But this situation makes me have to do this manually every night. Really troublesome.

    1. Thhank you for sharing your experience!

      Kind regards,
      Millenary Watches

  10. I bought my Tudor BB GMT March 23 2021, on March 30, I didnt realize all day it was reading 29. I wound the watch several times past 12, and after about 3-4 times it changed to 30.. then it wouldnt change to 31. So I wound it backwards all the way through the month down to 1, 31 until it got to 30, here we are at 9:47 and I can see it starting to change to 31…. Will monitor for a little while before deciding if I want to send it in to get repaired. 6 days of ownership…$4,000 watch. a bit dissapointing. Otherwise, I love the watch.

    1. Hi,
      Thank you for sharing your experience and thoughts!
      Fortunately covered under warranty!

      Kind regards,
      Millenary Watches

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