ETA Movement Question

Thread: ETA Movement Question

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  1. #1
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    ETA Movement Question

    I just received a Technos Sky Chief 30 Jewel Automatic watch. The sellers picture, wasn't good enough to identify which movement is in it, beyond it's an ETA. It does have a quick-set date by going between 20:40 and 24:00 and the date change is with a positive click. Any Ideas The seller sent me the wrong watch, he had an near identical watch with an unsigned bracelet which is the one I got, instead of the one with a signed bracelet.:oops: We're negotiating right now trying to come to an accommodation. so pulling the back off isn't an option.

  2. #2
    Member Eeeb's Avatar
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    Re: ETA Movement Question

    30 jeweled automatic... that should narrow it.ETA 2450 fits that description.
    "Forever is composed of nows." - Emily Dickinson

    "The watch has to be surrounded by a history.
    You need more than just a great design. You need to create an atmosphere around the product.
    Who is the company behind it? Why are they using this material?
    People need to be able to identify the watch with themselves. It's based on emotion." - Ralph Furter

    ...that's just my opinion and I've been wrong before and will be again and might be now!

  3. #3
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    Re: ETA Movement Question

    The 2450 family automatic with a quick-set date is the 2472 but Ranftt only shows 17 and 25 jewel versions. On the Ranfft site none of the movements that show availability with 30 jewels are shown as having quick-set date mechanisms. I suspect that it is a 30 jewel 2472 because other movements in the family were available with 30 jewels. If I end up keeping this watch we'll know but I'm trying to do an exchange with the seller for the watch I wanted right know we're at doing a full refund including shipping both ways. I have offered to buy the other watch also, at a reduced price and keep both, we'll see if he accepts.

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  5. #4
    Member lysanderxiii's Avatar
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    Re: ETA Movement Question

    Quote Originally Posted by nsmike View Post
    It does have a quick-set date by going between 20:40 and 24:00....
    That is not quick set, by the usual definition. This is a standard non-quick set movement.

    Quick-set is usually having a third crown position in-between winding and setting, turning the crown while in the third position rapidly advances the date and day, if fitted.
    familiaritas parit contemptum; raritate admiratione wins.- Lucius Apuleius
    est necessry, accurate ad secundo? - Lysander magna
    iustum est horologium - Obscurus Genius

  6. #5
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    Re: ETA Movement Question

    Quote Originally Posted by lysanderxiii View Post
    That is not quick set, by the usual definition. This is a standard non-quick set movement.

    Quick-set is usually having a third crown position in-between winding and setting, turning the crown while in the third position rapidly advances the date and day, if fitted.
    I have no argument but then how do you describe it? Earlier watches had to be rotated twice around the dial to move the date forward.

  7. #6
    Member rmelle's Avatar
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    Re: ETA Movement Question

    At watchschool this was actually considered quickset date.
    as it was a huge advantage over the old system.
    so the modern, widely spread, system should be: "Super quickset"

    regards,
    RJ van melle.

  8. #7
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    Re: ETA Movement Question

    Hi there,

    just two remarks refering my archive:

    1) If e.g. 30 Jewels aren't mentioned, it doesn't mean that a version with
    this number doesn't exist, but just that I've never seen it. I only mention
    jewel numbers mentioned in the literatuer, or noticed on particuar samples.
    Exceptions are the jewel monsters of the 60s, were jewels are popped in
    almost every hole. Such jewel numbers are no real technical infomation.

    2) The kind of date setting is usually mentioned, if known. If nothing is
    mentioned, I either don't know it or the hands actually must be turned
    24 hours for each date increment. Quickset designates (in my archive)
    only setting the day and/or date using a third crown position.

    3) The range, the hands must be set forth and back to advance the date,
    is not very precise, and by no means a way to identify a movement. For
    some calibres this range is pretty constant, others show deviations due to
    individual friction within the date mechanism.

    Regards, Roland Ranfft

  9. #8
    Zenith Forum Co-moderator
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    Re: ETA Movement Question

    Digging up an old thread (since it was already dug up by embedding in another more recent one), I would say that the ETA 2472 has a rapid date change - i.e. at 12:00, the date licks over without shifting at all in the 2 hours before. If a movement has an intermediate crown position to flick through the dates when setting the watch from say ten days behind the current one, this would be a quick date setting mechanism.

    Hartmut Richter

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