Questions About ETA 2836-2 Movement
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  1. #1
    Member robi516's Avatar
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    Questions About ETA 2836-2 Movement

    My Aquadive BS-100 diver uses a "top grade" ETA 2836-2 movement tuned in-house to COSC accuracy and isochronism standards. It is my understanding that the 2836-2 movement is essentially the same as the 2824-2 except for: 1) the additional complication for Day in addition to Date; and 2) the date changes instantly at midnight instead of gradually rolling over during the preceding hour. This watch, however, has only a Date window rather than Day/Date, so the additional complication is not used.

    Why would Aquadive use the 2836-2 movement if they don't use the Day/Date complication? Besides the quick date change, are there any other benefits of this movement? Is it considered an upgrade over the 2824-2 in terms of quality or durability?
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  2. #2
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    Re: Questions About ETA 2836-2 Movement

    Can't imagine why they would - the 2836-2 is bigger

  3. #3
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    Re: Questions About ETA 2836-2 Movement

    This was posted in another thread:

    Quote Originally Posted by lysanderxiii View Post
    Several reason why you use a 2836-2 over a 2824-2:

    1) Buy in bulk, save money. The more units you can purchase the cheaper to can get them per unit.

    2) Common casees (see #1). The 2824 and the 2836 have different stem heights, so if you use 2824s you will have to get separate cases for these.

    3) Common dials (see #1). the 2836, because of the taller stem height requires longer feet on the dial.

    4) All other components of the 2824 and 2836 are interchangable, so for them it doesn't matter which you use.

    Why the 2836-2 can be cheaper:

    1) The 2836 and the 2834, aren't quite as popular as the 2824-2, so they are sold and a lower price.

    2) Sometimes overruns of 2834-2, the least popular of the bunch are reworked into 2836-2, since all parts except the day dial and plastic spacer are the same.

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  5. #4
    lvt
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    Re: Questions About ETA 2836-2 Movement

    Yes, they just buy a whole container of it to negociate some serious discount.

    The 2836-2 is more versatile than the 2824/2892 as the day feature can be optional.
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  6. #5
    Moderator at Large stuffler,mike's Avatar
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    Re: Questions About ETA 2836-2 Movement

    It is all about availability since Swatch Group is reducing selling ebauches to other companies.
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    Re: Questions About ETA 2836-2 Movement

    Quote Originally Posted by stuffler,mike View Post
    It is all about availability since Swatch Group is reducing selling ebauches to other companies.
    Thanks for the responses. The AD is a big thick watch so the size of the stem/case may have had something to do with it. Also, the quick date change is a nice feature. But it seems like a waste to have a Day complication and not use it. I suspect the main reason is as you say...volume pricing from ETA/Swatch.
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  8. #7
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    Re: Questions About ETA 2836-2 Movement

    I believe that the ETA 2836-2 is more readily available, and hence cheaper. The disadvantage is that it is slightly thicker.


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  9. #8
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    Re: Questions About ETA 2836-2 Movement

    It is kind of odd if the day window is omitted, but the reasons above make sense.

    I work until the early hours of the morning and often need the day & date for paperwork after midnight, so I'm a huge fan of my Damasko's instant change at midnight. My new Monster is agonizingly slow, about three hours before the day and date have rolled over, so I doubt it will see as much wrist time on work days as I thought it could...
    I got a standing desk, so now I need a pilot watch...

  10. #9
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    Re: Questions About ETA 2836-2 Movement

    I've spoke with Bill Yao of MK II watches in the past, and he said he likes using the 2836 without day in his date only military inspired watch designs precisely because of the instant date change. It seems more in keeping with a precision military instrument.
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  11. #10
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    Re: Questions About ETA 2836-2 Movement

    Both my Diastar 40 Chronometer and my Hyperchrome Golden Horse Chronometer from Rado use 2836-2 with the day left out. In their case I doubt it is a question of availablity, but could be the instant change.



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